Ruling · Janmāṣṭamī (Kṛṣṇa Janmāṣṭamī) · 2049

Friday 20 August

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 159 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 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

Night of Friday 20 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

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

How it was decided

  1. 01

    Aṅga

    Aṣṭamī runs from 02:47 on Fri 20 Aug to 03:46 on Sat 21 Aug.

    2049-08-19T18:47:07Z → 2049-08-20T19:45:58Z

  2. 02

    Kāla

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

    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 19th and 48 of 48 on the 20th.

    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 9553 s

  5. 05

    Ruling

    Janmāṣṭamī, Daqing, 2049: Friday 20 August.

    confidence: determinate

Say it like this

In Daqing, Janmāṣṭamī (Krishna Janmashtami) 2049 falls on Friday 20 August. Aṣṭamī runs from 02:47 on Fri 20 Aug to 03:46 on Sat 21 Aug and covers all of niśītha that night.

ahargana.org/daqing/festivals/2049/janmashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 20 Aug
Ahargaṇa, classicalDisc centre, no refractionFri 20 Aug
compat-drikpanchangComparison profileFri 20 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 19thCoveredNiśītha 20thCoveredRuled
Los Angeles11:47 → 12:4600:3348 min00:320 min19 Aug
Chicago13:47 → 14:4600:3048 min00:300 min19 Aug
Jersey City14:47 → 15:4600:3648 min00:360 min19 Aug
Port of Spain14:47 → 15:4623:4648 min23:450 min19 Aug
London19:47 → 20:4600:4048 min00:400 min19 Aug
Durban20:47 → 21:4623:3548 min23:350 min19 Aug
Dubai22:47 → 23:4623:5848 min23:580 min19 Aug
Delhi00:17 → 01:1600:0132 min00:0148 min20 Aug
Kolkata00:17 → 01:1623:160 min23:1648 min20 Aug
Singapore02:47 → 03:4600:440 min00:4448 min20 Aug
Sydney04:47 → 05:4623:350 min23:3448 min20 Aug
Suva06:47 → 07:4623:460 min23:4648 min20 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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