Tamil Festival & Vratam Calendar 2026
Annual Tamil calendar with major festivals and recurring lunar observances.
Chennai, India · Asia/Kolkata
January
Thu, 1 Jan 2026 · Pradosham
VratamTrayodashi overlaps local Pradosha period
Basis: Post-sunset tithi overlap
Sat, 3 Jan 2026 · Arudra Darisanam / Thiruvathirai
Tamil festivalArdra / Thiruvathirai in Margazhi
Basis: Sunrise nakshatra
Sat, 3 Jan 2026 · Pournami
Lunar observancePurnima at local sunrise
Basis: Sunrise tithi
Wed, 7 Jan 2026 · Sankatahara Chaturthi
VratamKrishna Paksha Chaturthi at sunrise
Basis: Sunrise tithi
Wed, 14 Jan 2026 · Ekadashi
VratamKrishna Paksha Ekadashi
Basis: Sunrise tithi; detailed Smarta/Vaishnava rules are shown in the observance calendar
Thu, 15 Jan 2026 · Pradosham
VratamTrayodashi overlaps local Pradosha period
Basis: Post-sunset tithi overlap
Fri, 16 Jan 2026 · Masa Shivaratri
VratamKrishna Chaturdashi during Nishita
Basis: Nishita tithi
Fri, 16 Jan 2026 · Pradosham
VratamTrayodashi overlaps local Pradosha period
Basis: Post-sunset tithi overlap
Sun, 18 Jan 2026 · Thai Amavasai
Lunar observanceAmavasya at local sunrise
Basis: Sunrise tithi
Tue, 20 Jan 2026 · Thiruvona Vratham
VratamShravana / Thiruvonam nakshatra at sunrise
Basis: Sunrise nakshatra
Thu, 22 Jan 2026 · Chaturthi Vratam
VratamShukla Paksha Chaturthi at sunrise
Basis: Sunrise tithi
Sat, 24 Jan 2026 · Shashti Vratam
VratamShukla Paksha Shashthi at sunrise
Basis: Sunrise tithi
Wed, 28 Jan 2026 · Karthigai Vratham
VratamKrittika / Karthigai nakshatra at sunrise
Basis: Sunrise nakshatra
Thu, 29 Jan 2026 · Ekadashi
VratamShukla Paksha Ekadashi
Basis: Sunrise tithi; detailed Smarta/Vaishnava rules are shown in the observance calendar
Fri, 30 Jan 2026 · Pradosham
VratamTrayodashi overlaps local Pradosha period
Basis: Post-sunset tithi overlap
February
Sun, 1 Feb 2026 · Pournami
Lunar observancePurnima at local sunrise
Basis: Sunrise tithi
Sun, 1 Feb 2026 · Thaipusam
Tamil festivalPoosam / Pushya in Tamil Thai
Basis: Sunrise nakshatra
Thu, 5 Feb 2026 · Sankatahara Chaturthi
VratamKrishna Paksha Chaturthi at sunrise
Basis: Sunrise tithi
Fri, 13 Feb 2026 · Ekadashi
VratamKrishna Paksha Ekadashi
Basis: Sunrise tithi; detailed Smarta/Vaishnava rules are shown in the observance calendar
Sat, 14 Feb 2026 · Pradosham
VratamTrayodashi overlaps local Pradosha period
Basis: Post-sunset tithi overlap
Sun, 15 Feb 2026 · Maha Shivaratri
FestivalMagha Krishna Chaturdashi under amanta reckoning
Basis: Nishita tithi
Sun, 15 Feb 2026 · Masa Shivaratri
VratamKrishna Chaturdashi during Nishita
Basis: Nishita tithi
Mon, 16 Feb 2026 · Thiruvona Vratham
VratamShravana / Thiruvonam nakshatra at sunrise
Basis: Sunrise nakshatra
Tue, 17 Feb 2026 · Amavasai
Lunar observanceAmavasya at local sunrise
Basis: Sunrise tithi
Sat, 21 Feb 2026 · Chaturthi Vratam
VratamShukla Paksha Chaturthi at sunrise
Basis: Sunrise tithi
Mon, 23 Feb 2026 · Shashti Vratam
VratamShukla Paksha Shashthi at sunrise
Basis: Sunrise tithi
Tue, 24 Feb 2026 · Karthigai Vratham
VratamKrittika / Karthigai nakshatra at sunrise
Basis: Sunrise nakshatra
Fri, 27 Feb 2026 · Ekadashi
VratamShukla Paksha Ekadashi
Basis: Sunrise tithi; detailed Smarta/Vaishnava rules are shown in the observance calendar
March
Sun, 1 Mar 2026 · Pradosham
VratamTrayodashi overlaps local Pradosha period
Basis: Post-sunset tithi overlap
Tue, 3 Mar 2026 · Pournami
Lunar observancePurnima at local sunrise
Basis: Sunrise tithi
Sat, 7 Mar 2026 · Sankatahara Chaturthi
VratamKrishna Paksha Chaturthi at sunrise
Basis: Sunrise tithi
Sun, 15 Mar 2026 · Ekadashi
VratamKrishna Paksha Ekadashi
Basis: Sunrise tithi; detailed Smarta/Vaishnava rules are shown in the observance calendar
Sun, 15 Mar 2026 · Karadayan Nombu
Tamil observanceTransition into the Tamil month of Panguni
Basis: Tamil solar date; household observance time follows the Sankranti transition
Sun, 15 Mar 2026 · Thiruvona Vratham
VratamShravana / Thiruvonam nakshatra at sunrise
Basis: Sunrise nakshatra
Mon, 16 Mar 2026 · Pradosham
VratamTrayodashi overlaps local Pradosha period
Basis: Post-sunset tithi overlap
Tue, 17 Mar 2026 · Masa Shivaratri
VratamKrishna Chaturdashi during Nishita
Basis: Nishita tithi
Thu, 19 Mar 2026 · Amavasai
Lunar observanceAmavasya at local sunrise
Basis: Sunrise tithi
Sun, 22 Mar 2026 · Chaturthi Vratam
VratamShukla Paksha Chaturthi at sunrise
Basis: Sunrise tithi
Mon, 23 Mar 2026 · Karthigai Vratham
VratamKrittika / Karthigai nakshatra at sunrise
Basis: Sunrise nakshatra
Tue, 24 Mar 2026 · Shashti Vratam
VratamShukla Paksha Shashthi at sunrise
Basis: Sunrise tithi
Thu, 26 Mar 2026 · Rama Navami
FestivalChaitra Shukla Navami
Basis: Madhyahna tithi
Sun, 29 Mar 2026 · Ekadashi
VratamShukla Paksha Ekadashi
Basis: Sunrise tithi; detailed Smarta/Vaishnava rules are shown in the observance calendar
Mon, 30 Mar 2026 · Pradosham
VratamTrayodashi overlaps local Pradosha period
Basis: Post-sunset tithi overlap
April
Wed, 1 Apr 2026 · Panguni Uthiram
Tamil festivalUthiram / Uttara Phalguni in Panguni
Basis: Sunrise nakshatra
Thu, 2 Apr 2026 · Pournami
Lunar observancePurnima at local sunrise
Basis: Sunrise tithi
Mon, 6 Apr 2026 · Sankatahara Chaturthi
VratamKrishna Paksha Chaturthi at sunrise
Basis: Sunrise tithi
Sun, 12 Apr 2026 · Thiruvona Vratham
VratamShravana / Thiruvonam nakshatra at sunrise
Basis: Sunrise nakshatra
Mon, 13 Apr 2026 · Ekadashi
VratamKrishna Paksha Ekadashi
Basis: Sunrise tithi; detailed Smarta/Vaishnava rules are shown in the observance calendar
Wed, 15 Apr 2026 · Masa Shivaratri
VratamKrishna Chaturdashi during Nishita
Basis: Nishita tithi
Wed, 15 Apr 2026 · Pradosham
VratamTrayodashi overlaps local Pradosha period
Basis: Post-sunset tithi overlap
Fri, 17 Apr 2026 · Amavasai
Lunar observanceAmavasya at local sunrise
Basis: Sunrise tithi
Mon, 20 Apr 2026 · Akshaya Tritiya
FestivalVaishakha Shukla Tritiya
Basis: Sunrise tithi
Wed, 22 Apr 2026 · Shashti Vratam
VratamShukla Paksha Shashthi at sunrise
Basis: Sunrise tithi
Mon, 27 Apr 2026 · Ekadashi
VratamShukla Paksha Ekadashi
Basis: Sunrise tithi; detailed Smarta/Vaishnava rules are shown in the observance calendar
Tue, 28 Apr 2026 · Pradosham
VratamTrayodashi overlaps local Pradosha period
Basis: Post-sunset tithi overlap
Wed, 29 Apr 2026 · Pradosham
VratamTrayodashi overlaps local Pradosha period
Basis: Post-sunset tithi overlap
Thu, 30 Apr 2026 · Narasimha Jayanti
FestivalVaishakha Shukla Chaturdashi
Basis: Evening tithi
May
Fri, 1 May 2026 · Pournami
Lunar observancePurnima at local sunrise
Basis: Sunrise tithi
Tue, 5 May 2026 · Sankatahara Chaturthi
VratamKrishna Paksha Chaturthi at sunrise
Basis: Sunrise tithi
Wed, 6 May 2026 · Sankatahara Chaturthi
VratamKrishna Paksha Chaturthi at sunrise
Basis: Sunrise tithi
Sat, 9 May 2026 · Thiruvona Vratham
VratamShravana / Thiruvonam nakshatra at sunrise
Basis: Sunrise nakshatra
Wed, 13 May 2026 · Ekadashi
VratamKrishna Paksha Ekadashi
Basis: Sunrise tithi; detailed Smarta/Vaishnava rules are shown in the observance calendar
Thu, 14 May 2026 · Pradosham
VratamTrayodashi overlaps local Pradosha period
Basis: Post-sunset tithi overlap
Fri, 15 May 2026 · Masa Shivaratri
VratamKrishna Chaturdashi during Nishita
Basis: Nishita tithi
Sat, 16 May 2026 · Amavasai
Lunar observanceAmavasya at local sunrise
Basis: Sunrise tithi
Sun, 17 May 2026 · Karthigai Vratham
VratamKrittika / Karthigai nakshatra at sunrise
Basis: Sunrise nakshatra
Wed, 20 May 2026 · Chaturthi Vratam
VratamShukla Paksha Chaturthi at sunrise
Basis: Sunrise tithi
Fri, 22 May 2026 · Shashti Vratam
VratamShukla Paksha Shashthi at sunrise
Basis: Sunrise tithi
Tue, 26 May 2026 · Ekadashi
VratamShukla Paksha Ekadashi
Basis: Sunrise tithi; detailed Smarta/Vaishnava rules are shown in the observance calendar
Wed, 27 May 2026 · Ekadashi
VratamShukla Paksha Ekadashi
Basis: Sunrise tithi; detailed Smarta/Vaishnava rules are shown in the observance calendar
Thu, 28 May 2026 · Pradosham
VratamTrayodashi overlaps local Pradosha period
Basis: Post-sunset tithi overlap
Sun, 31 May 2026 · Pournami
Lunar observancePurnima at local sunrise
Basis: Sunrise tithi
June
Thu, 4 Jun 2026 · Sankatahara Chaturthi
VratamKrishna Paksha Chaturthi at sunrise
Basis: Sunrise tithi
Fri, 5 Jun 2026 · Thiruvona Vratham
VratamShravana / Thiruvonam nakshatra at sunrise
Basis: Sunrise nakshatra
Sat, 6 Jun 2026 · Thiruvona Vratham
VratamShravana / Thiruvonam nakshatra at sunrise
Basis: Sunrise nakshatra
Thu, 11 Jun 2026 · Ekadashi
VratamKrishna Paksha Ekadashi
Basis: Sunrise tithi; detailed Smarta/Vaishnava rules are shown in the observance calendar
Fri, 12 Jun 2026 · Pradosham
VratamTrayodashi overlaps local Pradosha period
Basis: Post-sunset tithi overlap
Sat, 13 Jun 2026 · Karthigai Vratham
VratamKrittika / Karthigai nakshatra at sunrise
Basis: Sunrise nakshatra
Sat, 13 Jun 2026 · Masa Shivaratri
VratamKrishna Chaturdashi during Nishita
Basis: Nishita tithi
Mon, 15 Jun 2026 · Amavasai
Lunar observanceAmavasya at local sunrise
Basis: Sunrise tithi
Thu, 18 Jun 2026 · Chaturthi Vratam
VratamShukla Paksha Chaturthi at sunrise
Basis: Sunrise tithi
Sat, 20 Jun 2026 · Shashti Vratam
VratamShukla Paksha Shashthi at sunrise
Basis: Sunrise tithi
Thu, 25 Jun 2026 · Ekadashi
VratamShukla Paksha Ekadashi
Basis: Sunrise tithi; detailed Smarta/Vaishnava rules are shown in the observance calendar
Sat, 27 Jun 2026 · Pradosham
VratamTrayodashi overlaps local Pradosha period
Basis: Post-sunset tithi overlap
Mon, 29 Jun 2026 · Pournami
Lunar observancePurnima at local sunrise
Basis: Sunrise tithi
July
Fri, 3 Jul 2026 · Thiruvona Vratham
VratamShravana / Thiruvonam nakshatra at sunrise
Basis: Sunrise nakshatra
Sat, 4 Jul 2026 · Sankatahara Chaturthi
VratamKrishna Paksha Chaturthi at sunrise
Basis: Sunrise tithi
Sat, 11 Jul 2026 · Karthigai Vratham
VratamKrittika / Karthigai nakshatra at sunrise
Basis: Sunrise nakshatra
Sun, 12 Jul 2026 · Masa Shivaratri
VratamKrishna Chaturdashi during Nishita
Basis: Nishita tithi
Sun, 12 Jul 2026 · Pradosham
VratamTrayodashi overlaps local Pradosha period
Basis: Post-sunset tithi overlap
Tue, 14 Jul 2026 · Amavasai
Lunar observanceAmavasya at local sunrise
Basis: Sunrise tithi
Sat, 18 Jul 2026 · Aadi Pooram
Tamil festivalPooram / Purva Phalguni in Aadi
Basis: Sunrise nakshatra
Sun, 19 Jul 2026 · Shashti Vratam
VratamShukla Paksha Shashthi at sunrise
Basis: Sunrise tithi
Sat, 25 Jul 2026 · Ekadashi
VratamShukla Paksha Ekadashi
Basis: Sunrise tithi; detailed Smarta/Vaishnava rules are shown in the observance calendar
Sun, 26 Jul 2026 · Pradosham
VratamTrayodashi overlaps local Pradosha period
Basis: Post-sunset tithi overlap
Wed, 29 Jul 2026 · Pournami
Lunar observancePurnima at local sunrise
Basis: Sunrise tithi
Thu, 30 Jul 2026 · Thiruvona Vratham
VratamShravana / Thiruvonam nakshatra at sunrise
Basis: Sunrise nakshatra
August
Sun, 2 Aug 2026 · Aadi Perukku
Tamil observanceAadi 18
Basis: Tamil solar date
Sun, 2 Aug 2026 · Sankatahara Chaturthi
VratamKrishna Paksha Chaturthi at sunrise
Basis: Sunrise tithi
Fri, 7 Aug 2026 · Aadi Kiruthigai
Tamil festivalKrittika / Kiruthigai in Aadi
Basis: Sunrise nakshatra
Fri, 7 Aug 2026 · Karthigai Vratham
VratamKrittika / Karthigai nakshatra at sunrise
Basis: Sunrise nakshatra
Sun, 9 Aug 2026 · Ekadashi
VratamKrishna Paksha Ekadashi
Basis: Sunrise tithi; detailed Smarta/Vaishnava rules are shown in the observance calendar
Mon, 10 Aug 2026 · Pradosham
VratamTrayodashi overlaps local Pradosha period
Basis: Post-sunset tithi overlap
Tue, 11 Aug 2026 · Masa Shivaratri
VratamKrishna Chaturdashi during Nishita
Basis: Nishita tithi
Wed, 12 Aug 2026 · Aadi Amavasai
Lunar observanceAmavasya at local sunrise
Basis: Sunrise tithi
Fri, 14 Aug 2026 · Aadi Pooram
Tamil festivalPooram / Purva Phalguni in Aadi
Basis: Sunrise nakshatra
Sun, 16 Aug 2026 · Chaturthi Vratam
VratamShukla Paksha Chaturthi at sunrise
Basis: Sunrise tithi
Tue, 18 Aug 2026 · Shashti Vratam
VratamShukla Paksha Shashthi at sunrise
Basis: Sunrise tithi
Sun, 23 Aug 2026 · Ekadashi
VratamShukla Paksha Ekadashi
Basis: Sunrise tithi; detailed Smarta/Vaishnava rules are shown in the observance calendar
Tue, 25 Aug 2026 · Pradosham
VratamTrayodashi overlaps local Pradosha period
Basis: Post-sunset tithi overlap
Wed, 26 Aug 2026 · Thiruvona Vratham
VratamShravana / Thiruvonam nakshatra at sunrise
Basis: Sunrise nakshatra
Fri, 28 Aug 2026 · Pournami
Lunar observancePurnima at local sunrise
Basis: Sunrise tithi
Fri, 28 Aug 2026 · Varalakshmi Vratam
VratamLast Friday of Shravana Shukla Paksha
Basis: Sunrise lunar month and paksha
September
Tue, 1 Sep 2026 · Sankatahara Chaturthi
VratamKrishna Paksha Chaturthi at sunrise
Basis: Sunrise tithi
Thu, 3 Sep 2026 · Karthigai Vratham
VratamKrittika / Karthigai nakshatra at sunrise
Basis: Sunrise nakshatra
Fri, 4 Sep 2026 · Sri Krishna Janmashtami / Gokulashtami
FestivalShravana Krishna Ashtami under amanta reckoning
Basis: Nishita tithi
Mon, 7 Sep 2026 · Ekadashi
VratamKrishna Paksha Ekadashi
Basis: Sunrise tithi; detailed Smarta/Vaishnava rules are shown in the observance calendar
Tue, 8 Sep 2026 · Pradosham
VratamTrayodashi overlaps local Pradosha period
Basis: Post-sunset tithi overlap
Wed, 9 Sep 2026 · Masa Shivaratri
VratamKrishna Chaturdashi during Nishita
Basis: Nishita tithi
Fri, 11 Sep 2026 · Amavasai
Lunar observanceAmavasya at local sunrise
Basis: Sunrise tithi
Mon, 14 Sep 2026 · Vinayaka Chaturthi
FestivalBhadrapada Shukla Chaturthi
Basis: Madhyahna tithi
Tue, 15 Sep 2026 · Chaturthi Vratam
VratamShukla Paksha Chaturthi at sunrise
Basis: Sunrise tithi
Thu, 17 Sep 2026 · Shashti Vratam
VratamShukla Paksha Shashthi at sunrise
Basis: Sunrise tithi
Tue, 22 Sep 2026 · Ekadashi
VratamShukla Paksha Ekadashi
Basis: Sunrise tithi; detailed Smarta/Vaishnava rules are shown in the observance calendar
Wed, 23 Sep 2026 · Thiruvona Vratham
VratamShravana / Thiruvonam nakshatra at sunrise
Basis: Sunrise nakshatra
Thu, 24 Sep 2026 · Pradosham
VratamTrayodashi overlaps local Pradosha period
Basis: Post-sunset tithi overlap
Sat, 26 Sep 2026 · Pournami
Lunar observancePurnima at local sunrise
Basis: Sunrise tithi
Wed, 30 Sep 2026 · Sankatahara Chaturthi
VratamKrishna Paksha Chaturthi at sunrise
Basis: Sunrise tithi
October
Thu, 1 Oct 2026 · Karthigai Vratham
VratamKrittika / Karthigai nakshatra at sunrise
Basis: Sunrise nakshatra
Tue, 6 Oct 2026 · Ekadashi
VratamKrishna Paksha Ekadashi
Basis: Sunrise tithi; detailed Smarta/Vaishnava rules are shown in the observance calendar
Thu, 8 Oct 2026 · Masa Shivaratri
VratamKrishna Chaturdashi during Nishita
Basis: Nishita tithi
Thu, 8 Oct 2026 · Pradosham
VratamTrayodashi overlaps local Pradosha period
Basis: Post-sunset tithi overlap
Sat, 10 Oct 2026 · Mahalaya Amavasai
Lunar observanceAmavasya at local sunrise
Basis: Sunrise tithi
Sun, 11 Oct 2026 · Navaratri Begins
FestivalAshvina Shukla Pratipada
Basis: Sunrise tithi
Wed, 14 Oct 2026 · Chaturthi Vratam
VratamShukla Paksha Chaturthi at sunrise
Basis: Sunrise tithi
Fri, 16 Oct 2026 · Shashti Vratam
VratamShukla Paksha Shashthi at sunrise
Basis: Sunrise tithi
Tue, 20 Oct 2026 · Saraswati / Ayudha Pooja
FestivalAshvina Shukla Navami
Basis: Sunrise tithi
Tue, 20 Oct 2026 · Thiruvona Vratham
VratamShravana / Thiruvonam nakshatra at sunrise
Basis: Sunrise nakshatra
Wed, 21 Oct 2026 · Vijayadashami
FestivalAshvina Shukla Dashami
Basis: Sunrise tithi
Thu, 22 Oct 2026 · Ekadashi
VratamShukla Paksha Ekadashi
Basis: Sunrise tithi; detailed Smarta/Vaishnava rules are shown in the observance calendar
Fri, 23 Oct 2026 · Pradosham
VratamTrayodashi overlaps local Pradosha period
Basis: Post-sunset tithi overlap
Mon, 26 Oct 2026 · Pournami
Lunar observancePurnima at local sunrise
Basis: Sunrise tithi
Wed, 28 Oct 2026 · Karthigai Vratham
VratamKrittika / Karthigai nakshatra at sunrise
Basis: Sunrise nakshatra
Thu, 29 Oct 2026 · Sankatahara Chaturthi
VratamKrishna Paksha Chaturthi at sunrise
Basis: Sunrise tithi
November
Thu, 5 Nov 2026 · Ekadashi
VratamKrishna Paksha Ekadashi
Basis: Sunrise tithi; detailed Smarta/Vaishnava rules are shown in the observance calendar
Fri, 6 Nov 2026 · Pradosham
VratamTrayodashi overlaps local Pradosha period
Basis: Post-sunset tithi overlap
Sat, 7 Nov 2026 · Masa Shivaratri
VratamKrishna Chaturdashi during Nishita
Basis: Nishita tithi
Sun, 8 Nov 2026 · Deepavali / Naraka Chaturdashi
Tamil festivalKrishna Chaturdashi during Arunodaya
Basis: Pre-sunrise tithi; Tamil/South Indian Deepavali convention
Mon, 9 Nov 2026 · Amavasai
Lunar observanceAmavasya at local sunrise
Basis: Sunrise tithi
Fri, 13 Nov 2026 · Chaturthi Vratam
VratamShukla Paksha Chaturthi at sunrise
Basis: Sunrise tithi
Sun, 15 Nov 2026 · Shashti Vratam
VratamShukla Paksha Shashthi at sunrise
Basis: Sunrise tithi
Sun, 15 Nov 2026 · Skanda Shashti / Soorasamharam
Tamil festivalShukla Shashthi in Aippasi
Basis: Evening tithi
Mon, 16 Nov 2026 · Thiruvona Vratham
VratamShravana / Thiruvonam nakshatra at sunrise
Basis: Sunrise nakshatra
Sat, 21 Nov 2026 · Ekadashi
VratamShukla Paksha Ekadashi
Basis: Sunrise tithi; detailed Smarta/Vaishnava rules are shown in the observance calendar
Sun, 22 Nov 2026 · Pradosham
VratamTrayodashi overlaps local Pradosha period
Basis: Post-sunset tithi overlap
Tue, 24 Nov 2026 · Karthigai Vratham
VratamKrittika / Karthigai nakshatra at sunrise
Basis: Sunrise nakshatra
Tue, 24 Nov 2026 · Pournami
Lunar observancePurnima at local sunrise
Basis: Sunrise tithi
Sat, 28 Nov 2026 · Sankatahara Chaturthi
VratamKrishna Paksha Chaturthi at sunrise
Basis: Sunrise tithi
December
Fri, 4 Dec 2026 · Ekadashi
VratamKrishna Paksha Ekadashi
Basis: Sunrise tithi; detailed Smarta/Vaishnava rules are shown in the observance calendar
Sun, 6 Dec 2026 · Pradosham
VratamTrayodashi overlaps local Pradosha period
Basis: Post-sunset tithi overlap
Mon, 7 Dec 2026 · Masa Shivaratri
VratamKrishna Chaturdashi during Nishita
Basis: Nishita tithi
Tue, 8 Dec 2026 · Amavasai
Lunar observanceAmavasya at local sunrise
Basis: Sunrise tithi
Wed, 9 Dec 2026 · Amavasai
Lunar observanceAmavasya at local sunrise
Basis: Sunrise tithi
Sun, 13 Dec 2026 · Chaturthi Vratam
VratamShukla Paksha Chaturthi at sunrise
Basis: Sunrise tithi
Sun, 13 Dec 2026 · Thiruvona Vratham
VratamShravana / Thiruvonam nakshatra at sunrise
Basis: Sunrise nakshatra
Mon, 14 Dec 2026 · Thiruvona Vratham
VratamShravana / Thiruvonam nakshatra at sunrise
Basis: Sunrise nakshatra
Tue, 15 Dec 2026 · Shashti Vratam
VratamShukla Paksha Shashthi at sunrise
Basis: Sunrise tithi
Sun, 20 Dec 2026 · Ekadashi
VratamShukla Paksha Ekadashi
Basis: Sunrise tithi; detailed Smarta/Vaishnava rules are shown in the observance calendar
Sun, 20 Dec 2026 · Vaikunta Ekadashi
VratamShukla Ekadashi in Margazhi
Basis: Sunrise tithi; sampradaya rules may refine the fast date
Mon, 21 Dec 2026 · Pradosham
VratamTrayodashi overlaps local Pradosha period
Basis: Post-sunset tithi overlap
Tue, 22 Dec 2026 · Karthigai Vratham
VratamKrittika / Karthigai nakshatra at sunrise
Basis: Sunrise nakshatra
Thu, 24 Dec 2026 · Arudra Darisanam / Thiruvathirai
Tamil festivalArdra / Thiruvathirai in Margazhi
Basis: Sunrise nakshatra
Thu, 24 Dec 2026 · Pournami
Lunar observancePurnima at local sunrise
Basis: Sunrise tithi
Sun, 27 Dec 2026 · Sankatahara Chaturthi
VratamKrishna Paksha Chaturthi at sunrise
Basis: Sunrise tithi
The annual calendar combines Tamil solar dates with location-aware lunar calculations. Ekadashi and ritual-specific observances may have sampradaya-specific refinements; use the dedicated observance calendar for detailed fasting classifications. Upakarma dates are not generalized across Vedas and shakhas.