Ruling · Janmāṣṭamī (Kṛṣṇa Janmāṣṭamī) · 1978

Friday 25 August

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 456 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 24 August

Aṣṭamī is absent from niśītha. Not taken.

niśītha begins 23:19  00:07 niśītha ends
22:3122:5523:1923:4300:0700:3100:55

0 of 48 minutes covered

Night of Friday 25 August

Taken. The only night Aṣṭamī reaches.

niśītha begins 23:18  00:06 niśītha ends
22:3022:5423:1823:4200:0600:3000:54

48 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 07:42 on Fri 25 Aug to 09:02 on Sat 26 Aug.

    1978-08-24T23:42:12Z → 1978-08-26T01:02:13Z

  2. 02

    Kāla

    Niśītha is 1 ghaṭikā either side of midnight: 23:19–00:07 on the 24th, 23:18–00:06 on the 25th.

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

  3. 03

    Rule

    Aṣṭamī must be present during niśītha. It covers 0 of 48 minutes on the 24th and 48 of 48 on the 25th.

    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 27331 s

  5. 05

    Ruling

    Janmāṣṭamī, Daqing, 1978: Friday 25 August.

    confidence: determinate

Say it like this

In Daqing, Janmāṣṭamī (Krishna Janmashtami) 1978 falls on Friday 25 August. Aṣṭamī runs from 07:42 on Fri 25 Aug to 09:02 on Sat 26 Aug and covers all of niśītha that night.

ahargana.org/daqing/festivals/1978/janmashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 25 Aug
Ahargaṇa, classicalDisc centre, no refractionFri 25 Aug
compat-drikpanchangComparison profileFri 25 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 24thCoveredNiśītha 26thCoveredRuled
Los Angeles16:42 → 18:0200:3148 min00:310 min24 Aug
Chicago18:42 → 20:0200:2948 min00:290 min24 Aug
Jersey City19:42 → 21:0200:3548 min00:340 min24 Aug
Port of Spain19:42 → 21:0223:4448 min23:440 min24 Aug
London00:42 → 02:0200:3945 min00:390 min25 Aug
Durban01:42 → 03:0223:340 min23:330 min25 Aug
Dubai03:42 → 05:0223:570 min23:570 min25 Aug
Delhi05:12 → 06:3200:000 min23:590 min25 Aug
Kolkata05:12 → 06:3223:150 min23:140 min25 Aug
Singapore07:12 → 08:3200:130 min00:120 min25 Aug
Sydney09:42 → 11:0223:330 min23:330 min25 Aug
Suva11:42 → 13:0223:450 min23:440 min25 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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