Ruling · Janmāṣṭamī · 1903

Sunday 16 August

Boundaryin Baoding, under the Rashtriya Panchang method. A threshold is only 2 min 42 s away. Say “contested”.

Decide it for

38°52′ N 115°28′ E · Asia/Shanghai · GeoNames 1816971

The two nights

One ghaṭī is 24 minutes. Niśītha is 1 ghaṭikā either side of midnight.

Night of Saturday 15 August

Aṣṭamī is absent from niśītha. Not taken.

niśītha begins 23:59  00:47 niśītha ends
23:1123:3523:5900:2300:4701:1101:35

0 of 48 minutes covered

Night of Sunday 16 August

Taken. The only night Aṣṭamī reaches.

niśītha begins 23:59  00:47 niśītha ends
Aṣṭamī ends 00:49:22
23:1123:3523:5900:2300:4701:1101:35

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 01:45 on Sun 16 Aug to 00:49 on Mon 17 Aug.

    1903-08-15T17:45:16Z → 1903-08-16T16:49:22Z

  2. 02

    Kāla

    Niśītha is 1 ghaṭikā either side of midnight: 23:59–00:47 on the 15th, 23:59–00:47 on the 16th.

    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 15th and 48 of 48 on the 16th.

    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 162 s < 300 s

  5. 05

    Ruling

    Janmāṣṭamī, Baoding, 1903: Sunday 16 August.

    confidence: boundary (margin)

Say it like this

In Baoding, Janmāṣṭamī 1903 falls on Sunday 16 August. Aṣṭamī runs from 01:45 on Sun 16 Aug to 00:49 on Mon 17 Aug and covers all of niśītha that night. It is 2 min 42 s from a threshold: treat the date as contested.

ahargana.org/baoding/festivals/1903/janmashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 16 Aug
Ahargaṇa, classicalDisc centre, no refractionSun 16 Aug
compat-drikpanchangComparison profileSun 16 Aug
No institution has a recorded ruling for Baoding.

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 15thCoveredNiśītha 16thCoveredRuled
Los Angeles09:45 → 08:4923:3448 min23:330 min15 Aug
Chicago11:45 → 10:4923:3148 min23:310 min15 Aug
Jersey City12:45 → 11:4923:3748 min23:370 min15 Aug
Port of Spain13:45 → 12:4923:4748 min23:460 min15 Aug
London17:45 → 16:4923:4148 min23:410 min15 Aug
Durban19:45 → 18:4923:3648 min23:360 min15 Aug
Dubai21:26 → 20:3023:4048 min23:400 min15 Aug
Delhi23:06 → 22:1023:5348 min23:530 min15 Aug
Kolkata23:06 → 22:1023:0848 min23:080 min15 Aug
Singapore00:40 → 23:4423:400 min23:404 min16 Aug
Sydney03:45 → 02:4923:350 min23:3548 min16 Aug
Suva05:40 → 04:4423:420 min23:4248 min16 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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