Ruling · Dāmodara Dvādaśī · 2027

Friday 13 August

Determinatein Ujjain, under the Rashtriya Panchang method. Clear of every threshold by 406 minutes.

Decide it for

UjjainDelhiKolkataSingaporeSydneyJersey City

23°11′ N 75°47′ E · Asia/Kolkata · GeoNames 1253914

The two middays

One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.

Midday of Friday 13 August

Taken. The only midday Dvādaśī reaches.

madhyāhna begins 12:08  12:56 madhyāhna ends
11:2011:4412:0812:3212:5613:2013:44

48 of 48 minutes covered

Midday of Saturday 14 August

Dvādaśī is absent from madhyāhna. Not taken.

madhyāhna begins 12:08  12:56 madhyāhna ends
11:2011:4412:0812:3212:5613:2013:44

0 of 48 minutes covered

Dvādaśī presentMadhyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Dvādaśī runs from 03:00 on Fri 13 Aug to 05:22 on Sat 14 Aug.

    2027-08-12T21:30:05Z → 2027-08-13T23:51:37Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:08–12:56 on the 13th, 12:08–12:56 on the 14th.

    madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Dvādaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 13th and 0 of 48 on the 14th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103

  4. 04

    Tie-break

    Only one midday qualifies. No tie-break is needed.

    priority: purvaviddha → only-day · margin 24354 s

  5. 05

    Ruling

    Dāmodara Dvādaśī, Ujjain, 2027: Friday 13 August.

    confidence: determinate

Say it like this

In Ujjain, Dāmodara Dvādaśī 2027 falls on Friday 13 August. Dvādaśī runs from 03:00 on Fri 13 Aug to 05:22 on Sat 14 Aug and covers all of madhyāhna that midday.

ahargana.org/ujjain/festivals/2027/damodara-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 13 Aug
Ahargaṇa, classicalDisc centre, no refractionFri 13 Aug
compat-drikpanchangComparison profileFri 13 Aug
No institution has a recorded ruling for Ujjain.

Institutional rulings are recorded with a source address, and are never edited to agree.

The rule, as data

/rules/damodara-dvadashi · ruleset 2026.3-draft

Month
Śrāvaṇa, amānta
Pakṣa · aṅga
Śukla · Dvādaśī
Kāla
Madhyāhna
Priority
Pūrvaviddhā
Tie-break
First day
Reference
CRC 1955, p. 103

“S 12 Buddha dvadasi, Damodara dvadasi (purvaviddha), Visnu-pavitraropana.” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceDvādaśīMadhyāhna 12thCoveredMadhyāhna 13thCoveredRuled
Los Angeles14:30 → 16:5212:340 min12:3448 min13 Aug
Chicago16:30 → 18:5212:310 min12:3148 min13 Aug
Jersey City17:30 → 19:5212:370 min12:3748 min13 Aug
Port of Spain17:30 → 19:5211:470 min11:4748 min13 Aug
London22:30 → 00:5212:410 min12:4148 min13 Aug
Durban23:30 → 01:5211:370 min11:3748 min13 Aug
Dubai01:30 → 03:5212:000 min12:0048 min13 Aug
Delhi03:00 → 05:2212:020 min12:0248 min13 Aug
Kolkata03:00 → 05:2211:180 min11:1748 min13 Aug
Singapore05:30 → 07:5212:460 min12:4648 min13 Aug
Sydney07:30 → 09:5211:370 min11:3648 min13 Aug
Suva09:30 → 11:5211:480 min11:4748 min13 Aug
Profile · tradition
pac-rp@2026.1 · smarta
Rule
damodara-dvadashi@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s