Ruling · Janmāṣṭamī (Kṛṣṇa Janmāṣṭamī) · 2058

Sunday 11 August

Boundaryin Baoding, under the Rashtriya Panchang method. A threshold is only 3 min 26 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 10 August

Qualifies with 48 of 48 minutes. Not taken.

niśītha begins 00:00  00:48 niśītha ends
Aṣṭamī begins 23:56:24
23:1223:3600:0000:2400:4801:1201:36

48 of 48 minutes covered

Night of Sunday 11 August

Taken. Both nights qualify; the rule takes the second.

niśītha begins 00:00  00:48 niśītha ends
Aṣṭamī ends 00:17:39
23:1223:3600:0000:2400:4801:1201:36

18 of 48 minutes covered, the first 18

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

How it was decided

  1. 01

    Aṅga

    Aṣṭamī runs from 23:56 on Sat 10 Aug to 00:18 on Mon 12 Aug.

    2058-08-10T15:56:25Z → 2058-08-11T16:17:40Z

  2. 02

    Kāla

    Niśītha is 1 ghaṭikā either side of midnight: 00:00–00:48 on the 10th, 00:00–00:48 on the 11th.

    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 10th and 18 of 48 on the 11th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103

  4. 04

    Tie-break

    Both nights qualify. Paraviddhā: the second is taken.

    priority: paraviddha → paraviddha · margin 206 s < 300 s

  5. 05

    Ruling

    Janmāṣṭamī, Baoding, 2058: Sunday 11 August.

    confidence: boundary (margin)

Say it like this

In Baoding, Janmāṣṭamī (Krishna Janmashtami) 2058 falls on Sunday 11 August. Aṣṭamī runs from 23:56 on Sat 10 Aug to 00:18 on Mon 12 Aug and covers 18 of 48 minutes of niśītha that night. It also reaches the previous night for 48 minutes; by the rule the second night is taken. It is 3 min 26 s from a threshold: treat the date as contested.

ahargana.org/baoding/festivals/2058/janmashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 11 Aug
Ahargaṇa, classicalDisc centre, no refractionSun 11 Aug
compat-drikpanchangComparison profileSun 11 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 10thCoveredNiśītha 11thCoveredRuled
Los Angeles08:56 → 09:1800:3548 min00:340 min10 Aug
Chicago10:56 → 11:1800:3248 min00:320 min10 Aug
Jersey City11:56 → 12:1800:3848 min00:380 min10 Aug
Port of Spain11:56 → 12:1823:4848 min23:470 min10 Aug
London16:56 → 17:1800:4248 min00:420 min10 Aug
Durban17:56 → 18:1823:3748 min23:370 min10 Aug
Dubai19:56 → 20:1800:0048 min00:000 min10 Aug
Delhi21:26 → 21:4800:0348 min00:030 min10 Aug
Kolkata21:26 → 21:4823:1848 min23:180 min10 Aug
Singapore23:56 → 00:1800:4648 min00:460 min10 Aug
Sydney01:56 → 02:1823:360 min23:3648 min11 Aug
Suva03:56 → 04:1823:480 min23:4848 min11 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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