Ruling · Janmāṣṭamī (Kṛṣṇa Janmāṣṭamī) · 1997

Sunday 24 August

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 26 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 Sunday 24 August

Taken. The only night Aṣṭamī reaches.

niśītha begins 23:19  00:07 niśītha ends
Aṣṭamī begins 22:52:29
22:3122:5523:1923:4300:0700:3100:55

48 of 48 minutes covered

Night of Monday 25 August

Aṣṭamī is absent from niśītha. Not taken.

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

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 22:52 on Sun 24 Aug to 22:05 on Mon 25 Aug.

    1997-08-24T14:52:29Z → 1997-08-25T14:04:33Z

  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 48 of 48 minutes on the 24th and 0 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 1566 s

  5. 05

    Ruling

    Janmāṣṭamī, Daqing, 1997: Sunday 24 August.

    confidence: determinate

Say it like this

In Daqing, Janmāṣṭamī (Krishna Janmashtami) 1997 falls on Sunday 24 August. Aṣṭamī runs from 22:52 on Sun 24 Aug to 22:05 on Mon 25 Aug and covers all of niśītha that night.

ahargana.org/daqing/festivals/1997/janmashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 24 Aug
Ahargaṇa, classicalDisc centre, no refractionSun 24 Aug
compat-drikpanchangComparison profileSun 24 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 25thCoveredRuled
Los Angeles07:52 → 07:0500:3148 min00:310 min24 Aug
Chicago09:52 → 09:0500:2948 min00:290 min24 Aug
Jersey City10:52 → 10:0500:3548 min00:340 min24 Aug
Port of Spain10:52 → 10:0523:4448 min23:440 min24 Aug
London15:52 → 15:0500:3948 min00:390 min24 Aug
Durban16:52 → 16:0523:3448 min23:340 min24 Aug
Dubai18:52 → 18:0523:5748 min23:570 min24 Aug
Delhi20:22 → 19:3523:5948 min23:590 min24 Aug
Kolkata20:22 → 19:3523:1548 min23:150 min24 Aug
Singapore22:52 → 22:0500:4348 min00:430 min24 Aug
Sydney00:52 → 00:0523:330 min23:3332 min25 Aug
Suva02:52 → 02:0523:440 min23:4448 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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