Namma Calendar Chennai (change city)

Vakya vs Thirukanitha panchangam: every difference, computed for 2016–2036

Each is right for its purpose. agrees with modern astronomy (eclipses, planet positions). is the ritual calendar of Tamil Nadu temples; their festivals and, for example, the Thirunallar Sani peyarchi follow it. Follow what your temple and family follow.

Two methods, one sky

Vakya computes the Sun, Moon and planets from the traditional vakya tables and is followed by Tamil Nadu temples and most printed almanacs. Thirukanitha (drik ganitha) is modern astronomical computation and matches the observed sky. Because the two place the Moon a little differently, and end times move by up to a few hours, and the Sun's entry into a sign, which starts each Tamil month, can move by a day.

Differences per year, Chennai

YearTamil date differsSunrise thithi differsFestival date differs
201614 days41 days3
201792 days29 days8
20180 days38 days5
2019110 days32 days9
202014 days31 days7
2021123 days42 days3
202261 days28 days8
2023110 days29 days5
202478 days37 days7
202592 days31 days4
202692 days23 days8
202778 days38 days3
2028106 days26 days8
202992 days37 days16
203092 days39 days10
203178 days21 days5
2032106 days38 days10
203360 days39 days6
2034140 days31 days7
203576 days38 days3
2036122 days40 days7

Computed day by day by the app's own engine; data CC BY 4.0, cite nammacalendar.com.

Tamil month start dates, 2026 and 2027

MonthVakyaThirukanitha
Thai 202615 Jan 202614 Jan 2026differs
Maasi 202613 Feb 202613 Feb 2026
Panguni 202615 Mar 202615 Mar 2026
Chithirai 202614 Apr 202614 Apr 2026
Vaikasi 202615 May 202615 May 2026
Aani 202615 Jun 202615 Jun 2026
Aadi 202617 Jul 202617 Jul 2026
Aavani 202618 Aug 202617 Aug 2026differs
Purattasi 202618 Sep 202617 Sep 2026differs
Aippasi 202618 Oct 202618 Oct 2026
Karthigai 202617 Nov 202617 Nov 2026
Margazhi 202616 Dec 202616 Dec 2026
Thai 202715 Jan 202715 Jan 2027
Maasi 202713 Feb 202713 Feb 2027
Panguni 202715 Mar 202715 Mar 2027
Chithirai 202714 Apr 202714 Apr 2027
Vaikasi 202715 May 202715 May 2027
Aani 202716 Jun 202716 Jun 2027
Aadi 202717 Jul 202717 Jul 2027
Aavani 202718 Aug 202717 Aug 2027differs
Purattasi 202718 Sep 202717 Sep 2027differs
Aippasi 202718 Oct 202718 Oct 2027
Karthigai 202717 Nov 202717 Nov 2027
Margazhi 202717 Dec 202716 Dec 2027differs

Upcoming festivals that fall on different days

FestivalVakyaThirukanitha
Holi21 Mar 202722 Mar 2027
Aadi Pooram5 Aug 20274 Aug 2027
Krishna Jayanthi24 Aug 202725 Aug 2027
Koodaravalli12 Jan 202811 Jan 2028
Aani Uthira Darisanam29 Jun 202828 Jun 2028
Aadi Perukku3 Aug 20282 Aug 2028
Madhyashtami11 Sep 202812 Sep 2028
Avidhava Navami12 Sep 202813 Sep 2028
Durgashtami26 Sep 202825 Sep 2028
Saraswathi Pooja / Ayudha Pooja27 Sep 202826 Sep 2028
Vijaya Dasami28 Sep 202827 Sep 2028

Saturn and Jupiter transits

TransitThirukanithaVakya
Saturn → Magaram24 Jan 202026 Dec 2020
Saturn → Kumbam29 Apr 202229 Mar 2023
Saturn → Magaram12 Jul 2022-
Saturn → Kumbam17 Jan 202320 Dec 2023
Saturn → Magaram-24 Aug 2023
Saturn → Meenam29 Mar 20256 Mar 2026
Saturn → Mesham3 Jun 202721 Apr 2028
Saturn → Meenam20 Oct 2027-
Saturn → Mesham23 Feb 2028-
Saturn → Rishabam8 Aug 202929 May 2030
Saturn → Mesham5 Oct 2029-
Saturn → Rishabam17 Apr 2030-
Saturn → Mithunam31 May 20325 Jul 2032
Saturn → Kadagam13 Jul 203412 Aug 2034
Saturn → Simmam27 Aug 203620 Sep 2036
Jupiter → Mithunam14 May 202511 May 2025
Jupiter → Kadagam18 Oct 20258 Oct 2025
Jupiter → Mithunam5 Dec 202521 Dec 2025
Jupiter → Kadagam2 Jun 202626 May 2026
Jupiter → Simmam31 Oct 202620 Oct 2026
Jupiter → Kadagam25 Jan 202713 Feb 2027
Jupiter → Simmam26 Jun 202713 Jun 2027
Jupiter → Kanni26 Nov 202716 Nov 2027

Vakya and Thirukanitha, side by side

Vakya and Thirukanitha panchangam for Chennai, side by side. Rows that differ are marked.

On this day the Tamil date differs: Vakya Purattasi 29, Thirukanitha Purattasi 30. Why the two differ →

VakyaThirukanitha
Tamil date Purattasi 29 · Parabhava Purattasi 30 · Parabhavadiffers
Thithi Sashti until 5:14 am (next day) Valarpirai Sashti until 5:54 am (next day)differs
Nakshatra Kettai until 7:20 am Kettai until 6:47 amdiffers
Yogam Sobhanam until 11:10 pm Sobhanam until 10:05 pmdiffers
Karanam Kaulava until 4:12 pm Kaulava until 4:38 pmdiffers
Sunrise 6:02 am 5:59 amdiffers
Sunset 5:56 pm 5:49 pmdiffers
Rahu Kalam 10:30 am – 12:00 pm 10:25 – 11:54 amdiffers
3:00 – 4:30 pm 2:51 – 4:20 pmdiffers
7:30 – 9:00 am 7:28 – 8:56 amdiffers
Nalla Neram 9:15 – 10:15 am 2:00 – 3:00 pm 5:59 – 7:28 am 8:56 – 10:25 am 11:54 am – 1:23 pm 4:20 – 5:49 pmdiffers
Gowri Nalla Neram 6:00 – 7:30 am 9:00 – 10:30 am 12:00 – 1:30 pm 4:30 – 6:00 pm 7:30 pm – 12:00 am (next day) 1:30 – 3:00 am (next day) 4:30 – 6:00 am (next day) 5:59 – 7:28 am 8:56 – 10:25 am 11:54 am – 1:23 pm 4:20 – 5:49 pm 7:20 – 11:54 pm 1:25 – 2:56 am (next day) 4:28 – 5:59 am (next day)differs
West · remedy: Jaggery West · remedy: Jaggery
Naal Downward day Level daydiffers
at sunrise Kanni Kanni
Moonrise 10:41 am 10:41 am
Amirtha / Siddha yogam Marana Yogam until 7:20 am -differs
for rasi Mesham (from 12:00 am), Rishabam (from 7:20 am) Mesham (from 12:00 am), Rishabam (from 6:47 am)differs

Vakya is what Tamil Nadu temples and printed almanacs follow (Rahu Kalam on a fixed 6 am day); Thirukanitha is computed from your city's actual sunrise.

Frequently asked

Vakya panchangam vs Thirukanitha panchangam: which is correct?

Each is right for its purpose. Thirukanitha agrees with modern astronomy (eclipses, planet positions). Vakya is the ritual calendar of Tamil Nadu temples; their festivals and, for example, the Thirunallar Sani peyarchi follow it. Follow what your temple and family follow.

How big is the difference?

In 2026, for Chennai, the Tamil date differs on 92 days, the sunrise thithi on 23 days, and 8 festival or observance dates fall on different days. Saturn and Jupiter transits differ by weeks to months.

Why does Rahu Kalam differ between them?

Printed Vakya almanacs take the day as 6 am to 6 pm; Thirukanitha divides the actual sunrise-to-sunset day.

Today's Rahu Kalam, Nalla Neram and panchangam