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
| Year | Tamil date differs | Sunrise thithi differs | Festival date differs |
|---|---|---|---|
| 2016 | 14 days | 41 days | 3 |
| 2017 | 92 days | 29 days | 8 |
| 2018 | 0 days | 38 days | 5 |
| 2019 | 110 days | 32 days | 9 |
| 2020 | 14 days | 31 days | 7 |
| 2021 | 123 days | 42 days | 3 |
| 2022 | 61 days | 28 days | 8 |
| 2023 | 110 days | 29 days | 5 |
| 2024 | 78 days | 37 days | 7 |
| 2025 | 92 days | 31 days | 4 |
| 2026 | 92 days | 23 days | 8 |
| 2027 | 78 days | 38 days | 3 |
| 2028 | 106 days | 26 days | 8 |
| 2029 | 92 days | 37 days | 16 |
| 2030 | 92 days | 39 days | 10 |
| 2031 | 78 days | 21 days | 5 |
| 2032 | 106 days | 38 days | 10 |
| 2033 | 60 days | 39 days | 6 |
| 2034 | 140 days | 31 days | 7 |
| 2035 | 76 days | 38 days | 3 |
| 2036 | 122 days | 40 days | 7 |
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
| Month | Vakya | Thirukanitha |
|---|---|---|
| Thai 2026 | 15 Jan 2026 | 14 Jan 2026differs |
| Maasi 2026 | 13 Feb 2026 | 13 Feb 2026 |
| Panguni 2026 | 15 Mar 2026 | 15 Mar 2026 |
| Chithirai 2026 | 14 Apr 2026 | 14 Apr 2026 |
| Vaikasi 2026 | 15 May 2026 | 15 May 2026 |
| Aani 2026 | 15 Jun 2026 | 15 Jun 2026 |
| Aadi 2026 | 17 Jul 2026 | 17 Jul 2026 |
| Aavani 2026 | 18 Aug 2026 | 17 Aug 2026differs |
| Purattasi 2026 | 18 Sep 2026 | 17 Sep 2026differs |
| Aippasi 2026 | 18 Oct 2026 | 18 Oct 2026 |
| Karthigai 2026 | 17 Nov 2026 | 17 Nov 2026 |
| Margazhi 2026 | 16 Dec 2026 | 16 Dec 2026 |
| Thai 2027 | 15 Jan 2027 | 15 Jan 2027 |
| Maasi 2027 | 13 Feb 2027 | 13 Feb 2027 |
| Panguni 2027 | 15 Mar 2027 | 15 Mar 2027 |
| Chithirai 2027 | 14 Apr 2027 | 14 Apr 2027 |
| Vaikasi 2027 | 15 May 2027 | 15 May 2027 |
| Aani 2027 | 16 Jun 2027 | 16 Jun 2027 |
| Aadi 2027 | 17 Jul 2027 | 17 Jul 2027 |
| Aavani 2027 | 18 Aug 2027 | 17 Aug 2027differs |
| Purattasi 2027 | 18 Sep 2027 | 17 Sep 2027differs |
| Aippasi 2027 | 18 Oct 2027 | 18 Oct 2027 |
| Karthigai 2027 | 17 Nov 2027 | 17 Nov 2027 |
| Margazhi 2027 | 17 Dec 2027 | 16 Dec 2027differs |
Upcoming festivals that fall on different days
| Festival | Vakya | Thirukanitha |
|---|---|---|
| Holi | 21 Mar 2027 | 22 Mar 2027 |
| Aadi Pooram | 5 Aug 2027 | 4 Aug 2027 |
| Krishna Jayanthi | 24 Aug 2027 | 25 Aug 2027 |
| Koodaravalli | 12 Jan 2028 | 11 Jan 2028 |
| Aani Uthira Darisanam | 29 Jun 2028 | 28 Jun 2028 |
| Aadi Perukku | 3 Aug 2028 | 2 Aug 2028 |
| Madhyashtami | 11 Sep 2028 | 12 Sep 2028 |
| Avidhava Navami | 12 Sep 2028 | 13 Sep 2028 |
| Durgashtami | 26 Sep 2028 | 25 Sep 2028 |
| Saraswathi Pooja / Ayudha Pooja | 27 Sep 2028 | 26 Sep 2028 |
| Vijaya Dasami | 28 Sep 2028 | 27 Sep 2028 |
Saturn and Jupiter transits
| Transit | Thirukanitha | Vakya |
|---|---|---|
| Saturn → Magaram | 24 Jan 2020 | 26 Dec 2020 |
| Saturn → Kumbam | 29 Apr 2022 | 29 Mar 2023 |
| Saturn → Magaram | 12 Jul 2022 | - |
| Saturn → Kumbam | 17 Jan 2023 | 20 Dec 2023 |
| Saturn → Magaram | - | 24 Aug 2023 |
| Saturn → Meenam | 29 Mar 2025 | 6 Mar 2026 |
| Saturn → Mesham | 3 Jun 2027 | 21 Apr 2028 |
| Saturn → Meenam | 20 Oct 2027 | - |
| Saturn → Mesham | 23 Feb 2028 | - |
| Saturn → Rishabam | 8 Aug 2029 | 29 May 2030 |
| Saturn → Mesham | 5 Oct 2029 | - |
| Saturn → Rishabam | 17 Apr 2030 | - |
| Saturn → Mithunam | 31 May 2032 | 5 Jul 2032 |
| Saturn → Kadagam | 13 Jul 2034 | 12 Aug 2034 |
| Saturn → Simmam | 27 Aug 2036 | 20 Sep 2036 |
| Jupiter → Mithunam | 14 May 2025 | 11 May 2025 |
| Jupiter → Kadagam | 18 Oct 2025 | 8 Oct 2025 |
| Jupiter → Mithunam | 5 Dec 2025 | 21 Dec 2025 |
| Jupiter → Kadagam | 2 Jun 2026 | 26 May 2026 |
| Jupiter → Simmam | 31 Oct 2026 | 20 Oct 2026 |
| Jupiter → Kadagam | 25 Jan 2027 | 13 Feb 2027 |
| Jupiter → Simmam | 26 Jun 2027 | 13 Jun 2027 |
| Jupiter → Kanni | 26 Nov 2027 | 16 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 →
| Vakya | Thirukanitha | |
|---|---|---|
| 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.