Ruling · Janmāṣṭamī (Kṛṣṇa Janmāṣṭamī) · 2009

Thursday 13 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 513 minutes.

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 Thursday 13 August

Taken. The only night Aṣṭamī reaches.

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

48 of 48 minutes covered

Night of Friday 14 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

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

How it was decided

  1. 01

    Aṅga

    Aṣṭamī runs from 15:27 on Thu 13 Aug to 14:15 on Fri 14 Aug.

    2009-08-13T07:26:30Z → 2009-08-14T06:15:05Z

  2. 02

    Kāla

    Niśītha is 1 ghaṭikā either side of midnight: 23:59–00:47 on the 13th, 23:59–00:47 on the 14th.

    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 13th and 0 of 48 on the 14th.

    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 30760 s

  5. 05

    Ruling

    Janmāṣṭamī, Baoding, 2009: Thursday 13 August.

    confidence: determinate

Say it like this

In Baoding, Janmāṣṭamī (Krishna Janmashtami) 2009 falls on Thursday 13 August. Aṣṭamī runs from 15:27 on Thu 13 Aug to 14:15 on Fri 14 Aug and covers all of niśītha that night.

ahargana.org/baoding/festivals/2009/janmashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 13 Aug
Ahargaṇa, classicalDisc centre, no refractionThu 13 Aug
compat-drikpanchangComparison profileThu 13 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 13thCoveredNiśītha 14thCoveredRuled
Los Angeles00:27 → 23:1500:340 min00:340 min12 Aug
Chicago02:27 → 01:1500:3244 min00:310 min13 Aug
Jersey City03:27 → 02:1500:3748 min00:370 min13 Aug
Port of Spain03:27 → 02:1523:4748 min23:470 min13 Aug
London08:27 → 07:1500:4248 min00:410 min13 Aug
Durban09:27 → 08:1523:3648 min23:360 min13 Aug
Dubai11:27 → 10:1500:0048 min23:590 min13 Aug
Delhi12:57 → 11:4500:0248 min00:020 min13 Aug
Kolkata12:57 → 11:4523:1748 min23:170 min13 Aug
Singapore15:27 → 14:1500:4548 min00:450 min13 Aug
Sydney17:27 → 16:1523:3648 min23:360 min13 Aug
Suva19:27 → 18:1523:4748 min23:470 min13 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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