Ruling · Janmāṣṭamī · 1954

Saturday 21 August

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 17 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 Friday 20 August

Aṣṭamī is absent from niśītha. Not taken.

niśītha begins 23:20  00:08 niśītha ends
22:3222:5623:2023:4400:0800:3200:56

0 of 48 minutes covered

Night of Saturday 21 August

Taken. The only night Aṣṭamī reaches.

niśītha begins 23:19  00:07 niśītha ends
Aṣṭamī ends 23:50:06
22:3122:5523:1923:4300:0700:3100:55

31 of 48 minutes covered, the first 31

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

How it was decided

  1. 01

    Aṅga

    Aṣṭamī runs from 01:56 on Sat 21 Aug to 23:50 on Sat 21 Aug.

    1954-08-20T17:55:54Z → 1954-08-21T15:50:06Z

  2. 02

    Kāla

    Niśītha is 1 ghaṭikā either side of midnight: 23:20–00:08 on the 20th, 23:19–00:07 on the 21st.

    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 20th and 31 of 48 on the 21st.

    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 1041 s

  5. 05

    Ruling

    Janmāṣṭamī, Daqing, 1954: Saturday 21 August.

    confidence: determinate

Say it like this

In Daqing, Janmāṣṭamī 1954 falls on Saturday 21 August. Aṣṭamī runs from 01:56 on Sat 21 Aug to 23:50 on Sat 21 Aug and covers 31 of 48 minutes of niśītha that night.

ahargana.org/daqing/festivals/1954/janmashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 21 Aug
Ahargaṇa, classicalDisc centre, no refractionSat 21 Aug
compat-drikpanchangComparison profileSat 21 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 20thCoveredNiśītha 21stCoveredRuled
Los Angeles10:56 → 08:5000:3248 min00:320 min20 Aug
Chicago12:56 → 10:5000:3048 min00:300 min20 Aug
Jersey City13:56 → 11:5000:3648 min00:360 min20 Aug
Port of Spain13:56 → 11:5023:4548 min23:450 min20 Aug
London18:56 → 16:5000:4048 min00:400 min20 Aug
Durban19:56 → 17:5023:3548 min23:350 min20 Aug
Dubai21:56 → 19:5023:5848 min23:580 min20 Aug
Delhi23:26 → 21:2000:0148 min00:000 min20 Aug
Kolkata23:26 → 21:2023:1638 min23:160 min20 Aug
Singapore01:26 → 23:2000:140 min00:140 min21 Aug
Sydney03:56 → 01:5023:340 min23:3448 min21 Aug
Suva05:56 → 03:5023:460 min23:4548 min21 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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