Ruling · Janmāṣṭamī (Kṛṣṇa Janmāṣṭamī) · 2099

Monday 7 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 388 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 Monday 7 September

Taken. The only night Aṣṭamī reaches.

niśītha begins 23:53  00:41 niśītha ends
23:0523:2923:5300:1700:4101:0501:29

48 of 48 minutes covered

Night of Tuesday 8 September

Aṣṭamī is absent from niśītha. Not taken.

niśītha begins 23:52  00:40 niśītha ends
23:0423:2823:5200:1600:4001:0401:28

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 17:03 on Mon 7 Sep to 17:24 on Tue 8 Sep.

    2099-09-07T09:03:28Z → 2099-09-08T09:24:25Z

  2. 02

    Kāla

    Niśītha is 1 ghaṭikā either side of midnight: 23:53–00:41 on the 7th, 23:52–00:40 on the 8th.

    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 7th and 0 of 48 on the 8th.

    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 23278 s

  5. 05

    Ruling

    Janmāṣṭamī, Baoding, 2099: Monday 7 September.

    confidence: determinate

Say it like this

In Baoding, Janmāṣṭamī (Krishna Janmashtami) 2099 falls on Monday 7 September. Aṣṭamī runs from 17:03 on Mon 7 Sep to 17:24 on Tue 8 Sep and covers all of niśītha that night.

ahargana.org/baoding/festivals/2099/janmashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 7 Sep
Ahargaṇa, classicalDisc centre, no refractionMon 7 Sep
compat-drikpanchangComparison profileMon 7 Sep
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 7thCoveredNiśītha 8thCoveredRuled
Los Angeles02:03 → 02:2400:2748 min00:270 min7 Sep
Chicago04:03 → 04:2400:2548 min00:250 min7 Sep
Jersey City05:03 → 05:2400:3148 min00:300 min7 Sep
Port of Spain05:03 → 05:2423:4048 min23:400 min7 Sep
London10:03 → 10:2400:3548 min00:350 min7 Sep
Durban11:03 → 11:2423:3048 min23:300 min7 Sep
Dubai13:03 → 13:2423:5348 min23:530 min7 Sep
Delhi14:33 → 14:5423:5648 min23:550 min7 Sep
Kolkata14:33 → 14:5423:1148 min23:110 min7 Sep
Singapore17:03 → 17:2400:3948 min00:390 min7 Sep
Sydney19:03 → 19:2423:2948 min23:290 min7 Sep
Suva21:03 → 21:2423:4148 min23:400 min7 Sep
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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