Ruling · Janmāṣṭamī (Kṛṣṇa Janmāṣṭamī) · 2012

Thursday 9 August

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 430 minutes.

Decide it for

46°35′ N 125°00′ E · Asia/Shanghai · GeoNames 2037860

The two nights

One ghaṭī is 24 minutes. Niśītha is 1 ghaṭikā either side of midnight.

Night of Thursday 9 August

Taken. The only night Aṣṭamī reaches.

niśītha begins 23:22  00:10 niśītha ends
22:3422:5823:2223:4600:1000:3400:58

48 of 48 minutes covered

Night of Friday 10 August

Aṣṭamī is absent from niśītha. Not taken.

niśītha begins 23:22  00:10 niśītha ends
22:3422:5823:2223:4600:1000:3400:58

0 of 48 minutes covered

Aṣṭamī presentNiśītha, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Aṣṭamī runs from 13:41 on Thu 9 Aug to 16:11 on Fri 10 Aug.

    2012-08-09T05:40:59Z → 2012-08-10T08:11:23Z

  2. 02

    Kāla

    Niśītha is 1 ghaṭikā either side of midnight: 23:22–00:10 on the 9th, 23:22–00:10 on the 10th.

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

  3. 03

    Rule

    Aṣṭamī must be present during niśītha. It covers 48 of 48 minutes on the 9th and 0 of 48 on the 10th.

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

  4. 04

    Tie-break

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

    priority: paraviddha → only-day · margin 25809 s

  5. 05

    Ruling

    Janmāṣṭamī, Daqing, 2012: Thursday 9 August.

    confidence: determinate

Say it like this

In Daqing, Janmāṣṭamī (Krishna Janmashtami) 2012 falls on Thursday 9 August. Aṣṭamī runs from 13:41 on Thu 9 Aug to 16:11 on Fri 10 Aug and covers all of niśītha that night.

ahargana.org/daqing/festivals/2012/janmashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 9 Aug
Ahargaṇa, classicalDisc centre, no refractionThu 9 Aug
compat-drikpanchangComparison profileThu 9 Aug
No institution has a recorded ruling for Daqing.

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

The rule, as data

/rules/janmashtami · ruleset 2026.3-draft

Month
Śrāvaṇa, amānta
Pakṣa · aṅga
Kṛṣṇa · Aṣṭamī
Kāla
Niśītha
Priority
Paraviddhā
Tie-break
Second day
Reference
CRC 1955, p. 103

“K 8 Janmastami (madhyaratra-vyapini), if midnight is covered on two days, or not on any day, it is to be observed on the 2nd day; special when combined with naksatra 'Rohini' at midnight, more so when on Monday or Wednesday. If the combination occurs before midnight and 'Rohini' extends up to midnight, it is to be observed on that day. Gokulastami.” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103. The clauses on Rohiṇī nakṣatra, the Vaiṣṇava observance on the day after saptamī, and the Assam and South India reckoning in the solar month belong to other readings and are not applied.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceAṣṭamīNiśītha 9thCoveredNiśītha 10thCoveredRuled
Los Angeles22:41 → 01:1100:3437 min00:340 min9 Aug
Chicago00:41 → 03:1100:3248 min00:320 min9 Aug
Jersey City01:41 → 04:1100:3848 min00:380 min9 Aug
Port of Spain01:41 → 04:1123:4748 min23:470 min9 Aug
London06:41 → 09:1100:4248 min00:420 min9 Aug
Durban07:41 → 10:1123:3748 min23:370 min9 Aug
Dubai09:41 → 12:1100:0048 min00:000 min9 Aug
Delhi11:11 → 13:4100:0348 min00:020 min9 Aug
Kolkata11:11 → 13:4123:1848 min23:180 min9 Aug
Singapore13:41 → 16:1100:4648 min00:460 min9 Aug
Sydney15:41 → 18:1123:3648 min23:360 min9 Aug
Suva17:41 → 20:1123:4848 min23:470 min9 Aug
Profile · tradition
pac-rp@2026.1 · smarta
Rule
janmashtami@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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