Ruling · Janmāṣṭamī (Kṛṣṇa Janmāṣṭamī) · 2071

Tuesday 18 August

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 530 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 Tuesday 18 August

Taken. The only night Aṣṭamī reaches.

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

48 of 48 minutes covered

Night of Wednesday 19 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

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

How it was decided

  1. 01

    Aṅga

    Aṣṭamī runs from 14:30 on Tue 18 Aug to 13:17 on Wed 19 Aug.

    2071-08-18T06:30:17Z → 2071-08-19T05:16:46Z

  2. 02

    Kāla

    Niśītha is 1 ghaṭikā either side of midnight: 23:20–00:08 on the 18th, 23:20–00:08 on the 19th.

    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 18th and 0 of 48 on the 19th.

    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 31803 s

  5. 05

    Ruling

    Janmāṣṭamī, Daqing, 2071: Tuesday 18 August.

    confidence: determinate

Say it like this

In Daqing, Janmāṣṭamī (Krishna Janmashtami) 2071 falls on Tuesday 18 August. Aṣṭamī runs from 14:30 on Tue 18 Aug to 13:17 on Wed 19 Aug and covers all of niśītha that night.

ahargana.org/daqing/festivals/2071/janmashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 18 Aug
Ahargaṇa, classicalDisc centre, no refractionTue 18 Aug
compat-drikpanchangComparison profileTue 18 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 18thCoveredNiśītha 19thCoveredRuled
Los Angeles23:30 → 22:1700:330 min00:330 min17 Aug
Chicago01:30 → 00:1700:310 min00:310 min18 Aug
Jersey City02:30 → 01:1700:3640 min00:360 min18 Aug
Port of Spain02:30 → 01:1723:4648 min23:460 min18 Aug
London07:30 → 06:1700:4148 min00:410 min18 Aug
Durban08:30 → 07:1723:3648 min23:350 min18 Aug
Dubai10:30 → 09:1723:5948 min23:590 min18 Aug
Delhi12:00 → 10:4700:0148 min00:010 min18 Aug
Kolkata12:00 → 10:4723:1748 min23:160 min18 Aug
Singapore14:30 → 13:1700:4548 min00:440 min18 Aug
Sydney16:30 → 15:1723:3548 min23:350 min18 Aug
Suva18:30 → 17:1723:4648 min23:460 min18 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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