Ruling · Janmāṣṭamī · 1935

Tuesday 20 August

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

Taken. The only night Aṣṭamī reaches.

niśītha begins 23:20  00:08 niśītha ends
Aṣṭamī begins 23:47:50
22:3222:5623:2023:4400:0800:3200:56

20 of 48 minutes covered, the last 20

Night of Wednesday 21 August

Aṣṭamī is absent from niśītha. Not taken.

niśītha begins 23:20  00:08 niśītha ends
Aṣṭamī ends 22:57:52
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 23:48 on Tue 20 Aug to 22:58 on Wed 21 Aug.

    1935-08-20T15:47:50Z → 1935-08-21T14:57:52Z

  2. 02

    Kāla

    Niśītha is 1 ghaṭikā either side of midnight: 23:20–00:08 on the 20th, 23:20–00:08 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 20 of 48 minutes on the 20th and 0 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 1195 s

  5. 05

    Ruling

    Janmāṣṭamī, Daqing, 1935: Tuesday 20 August.

    confidence: determinate

Say it like this

In Daqing, Janmāṣṭamī 1935 falls on Tuesday 20 August. Aṣṭamī runs from 23:48 on Tue 20 Aug to 22:58 on Wed 21 Aug and covers 20 of 48 minutes of niśītha that night.

ahargana.org/daqing/festivals/1935/janmashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 20 Aug
Ahargaṇa, classicalDisc centre, no refractionTue 20 Aug
compat-drikpanchangComparison profileTue 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 20thCoveredNiśītha 21stCoveredRuled
Los Angeles07:48 → 06:5823:3248 min23:320 min20 Aug
Chicago10:48 → 09:5800:3048 min00:300 min20 Aug
Jersey City11:48 → 10:5800:3648 min00:360 min20 Aug
Port of Spain11:48 → 10:5823:4548 min23:450 min20 Aug
London16:48 → 15:5800:4048 min00:400 min20 Aug
Durban17:48 → 16:5823:3548 min23:350 min20 Aug
Dubai19:48 → 18:5823:5848 min23:580 min20 Aug
Delhi21:18 → 20:2800:0148 min00:000 min20 Aug
Kolkata21:18 → 20:2823:1648 min23:160 min20 Aug
Singapore23:08 → 22:1800:0448 min00:040 min20 Aug
Sydney01:48 → 00:5823:340 min23:3448 min21 Aug
Suva03:48 → 02:5823:460 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

About Ahargaṇa