Accuracy report 2022
Festival dates of 2022 compared with the official lists, and sunrise, sunset and Moon phases compared with the U.S. Naval Observatory.
Generated 2 Nov 2026, 10:04 UTC · engine 1.4.2 · profile North Indian · Lahiri (calibrated)
State Government holiday lists
Holiday notifications of State Governments, each compared at a city of that state. www.india.gov.in
18 dates compared: 16 the same, 2 different with a known reason, 0 not yet explained.
Differences
| Official date | Name in the official list | Our festival | Our date | Result | Notes |
|---|---|---|---|---|---|
| 19/08/2022 (Fri) | Janam Ashtami (chandigarh) | Krishna Janmashtami | 18/08/2022 (Thu) (-1) | Different | Why the dates differConvention: Krishna Ashtami ran 18 Aug 21:21 to 19 Aug 22:59 IST. At Chandigarh only the night of 18/19 Aug has Ashtami at Nishita (the Smarta day, the engine's rule: 18 Aug); Ashtami prevails at sunrise (05:51) only on 19 Aug, the day the Punjab notification (Schedule #15, 'Janam Ashtami') lists, the udaya/Vaishnava day that DoPT gazettes as 'Janmashtami (Vaishnava)'. 2021, 2024 and 2026 agree with the engine. The engine's Vaishnava (ISKCON) date, computed beside it (occurrence.traditions), is 19 Aug, the listed day; the notification names no tradition, so the row is compared with the profile's (Smarta) date. |
| 25/10/2022 (Tue) | Goverdhan Pooja (chandigarh) | Govardhan Puja | 26/10/2022 (Wed) (+1) | Different | Why the dates differConvention: Amavasya ran 24 Oct 17:27 to 25 Oct 16:18 IST and Kartika Shukla Pratipada 25 Oct 16:18 to 26 Oct 14:42. At Chandigarh Pratipada has only 83 min of daylight on 25 Oct (to sunset 17:41), less than three muhurtas (134 min), so the engine's Govardhan Puja rule (Pratipada at sunrise lasting three muhurtas; the Amavasya-joined day only when Pratipada covers three muhurtas of daylight on both days) gives 26 Oct (sunrise 06:32). The Punjab notification (restricted list #23) keeps Govardhan Pooja, and its Vishwakarma Day, on 25 Oct, the day after Diwali (24 Oct, matched). 2021 and 2023-2026 agree with the engine. |
All 18 compared dates
| Official date | Name in the official list | Our festival | Our date | Result | Notes |
|---|---|---|---|---|---|
| 13/01/2022 (Thu) | Lohri (chandigarh) | Lohri | 13/01/2022 (Thu) | Same date | Source |
| 05/02/2022 (Sat) | Basant Panchmi/ Birthday of Satguru Ram Singh Ji (chandigarh) | Vasant Panchami (Saraswati Puja) | 05/02/2022 (Sat) | Same date | Source |
| 01/03/2022 (Tue) | Maha Shivaratri (chandigarh) | Maha Shivaratri | 01/03/2022 (Tue) | Same date | Source |
| 18/03/2022 (Fri) | Holi (chandigarh) | Holi (Dhulandi) | 18/03/2022 (Fri) | Same date | Source |
| 10/04/2022 (Sun) | Ram Navami (chandigarh) | Ram Navami | 10/04/2022 (Sun) | Same date | Source |
| 14/04/2022 (Thu) | Mahavir Jayanti/ Vaisakhi/ Birthday of Dr. B.R. Ambedkar (chandigarh) | Mahavir Jayanti | 14/04/2022 (Thu) | Same date | Source |
| 14/04/2022 (Thu) | Mahavir Jayanti/ Vaisakhi/ Birthday of Dr. B.R. Ambedkar (chandigarh) | Vaisakhi (Baisakhi) | 14/04/2022 (Thu) | Same date | Source |
| 03/05/2022 (Tue) | Idu'l Fitr / Lord Parshuram Jayanti (chandigarh) | Parshuram Jayanti | 03/05/2022 (Tue) | Same date | Source |
| 16/05/2022 (Mon) | Buddh Purnima (chandigarh) | Buddha Purnima | 16/05/2022 (Mon) | Same date | Source |
| 10/06/2022 (Fri) | Nirjala Ekadashi (chandigarh) | Ekadashi (Shukla) | 10/06/2022 (Fri) | Same date | Source |
| 19/08/2022 (Fri) | Janam Ashtami (chandigarh) | Krishna Janmashtami | 18/08/2022 (Thu) (-1) | Different | Why the dates differConvention: Krishna Ashtami ran 18 Aug 21:21 to 19 Aug 22:59 IST. At Chandigarh only the night of 18/19 Aug has Ashtami at Nishita (the Smarta day, the engine's rule: 18 Aug); Ashtami prevails at sunrise (05:51) only on 19 Aug, the day the Punjab notification (Schedule #15, 'Janam Ashtami') lists, the udaya/Vaishnava day that DoPT gazettes as 'Janmashtami (Vaishnava)'. 2021, 2024 and 2026 agree with the engine. The engine's Vaishnava (ISKCON) date, computed beside it (occurrence.traditions), is 19 Aug, the listed day; the notification names no tradition, so the row is compared with the profile's (Smarta) date. |
| 09/09/2022 (Fri) | Anant Chaturdashi (chandigarh) | Anant Chaturdashi | 09/09/2022 (Fri) | Same date | Source |
| 05/10/2022 (Wed) | Dussehra (chandigarh) | Vijayadashami (Dussehra) | 05/10/2022 (Wed) | Same date | Source |
| 09/10/2022 (Sun) | Birthday of Maharishi Valmiki Ji (chandigarh) | Valmiki Jayanti | 09/10/2022 (Sun) | Same date | Source |
| 13/10/2022 (Thu) | Karva Chauth (chandigarh) | Karva Chauth | 13/10/2022 (Thu) | Same date | Source |
| 24/10/2022 (Mon) | Diwali (chandigarh) | Diwali (Lakshmi Puja) | 24/10/2022 (Mon) | Same date | Source |
| 25/10/2022 (Tue) | Goverdhan Pooja (chandigarh) | Govardhan Puja | 26/10/2022 (Wed) (+1) | Different | Why the dates differConvention: Amavasya ran 24 Oct 17:27 to 25 Oct 16:18 IST and Kartika Shukla Pratipada 25 Oct 16:18 to 26 Oct 14:42. At Chandigarh Pratipada has only 83 min of daylight on 25 Oct (to sunset 17:41), less than three muhurtas (134 min), so the engine's Govardhan Puja rule (Pratipada at sunrise lasting three muhurtas; the Amavasya-joined day only when Pratipada covers three muhurtas of daylight on both days) gives 26 Oct (sunrise 06:32). The Punjab notification (restricted list #23) keeps Govardhan Pooja, and its Vishwakarma Day, on 25 Oct, the day after Diwali (24 Oct, matched). 2021 and 2023-2026 agree with the engine. |
| 30/10/2022 (Sun) | Chhath Pooja (chandigarh) | Chhath Puja | 30/10/2022 (Sun) | Same date | Source |
Sunrise, sunset and Moon phases
Compared with the U.S. Naval Observatory (public domain): sunrise and sunset at sea level with standard refraction, and the instants of New Moon, Full Moon and the quarters. Differences in minutes, ours minus USNO. aa.usno.navy.mil
No USNO reference values for this year.
USNO publishes its times rounded to the minute, so differences up to about one minute are rounding. NOAA's solar calculator uses the same rise and set definition; its values are not stored here separately.
How the comparison is made
The official lists are transcribed by hand from the published documents (each tied to its file's checksum) and stored with the site's code; they are never adjusted to match our results. Our dates come from the same engine and default calculation profile as every page of the site.
A different date is not necessarily an error. Most differences come from a documented convention:
- Udaya tithi: many official lists take the tithi prevailing at sunrise, while the texts decide some festivals by the tithi at another part of the day.
- Vyapini rules: festivals such as Diwali (Pradosh), Janmashtami (midnight) or Navami are fixed by the tithi present at a particular time; when two days qualify, traditions choose differently.
- Regional rules: a state may follow its own solar or lunar calendar, month system (amanta or purnimanta) or local custom.
- Administrative dates: a government may keep a holiday on a fixed or convenient day.
The reason shown for each difference is the note recorded with the reference data (in English). A difference without a recorded reason is marked as not yet explained and reviewed.
This report shows how our calculated dates compare with these references; it is not a claim that any calendar is the only correct one. Traditions may vary.