Ruling · Rāma Navamī · 1963

Tuesday 2 April

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 652 minutes.

Decide it for

DaqingDelhiKolkataSingaporeSydneyJersey City

46°35′ N 125°00′ E · Asia/Shanghai · GeoNames 2037860

The two middays

One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.

Midday of Monday 1 April

Navamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:21  12:09 madhyāhna ends
10:3310:5711:2111:4512:0912:3312:57

0 of 48 minutes covered

Midday of Tuesday 2 April

Taken. The only midday Navamī reaches.

madhyāhna begins 11:20  12:08 madhyāhna ends
10:3210:5611:2011:4412:0812:3212:56

48 of 48 minutes covered

Navamī presentMadhyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Navamī runs from 23:00 on Mon 1 Apr to 23:03 on Tue 2 Apr.

    1963-04-01T15:00:23Z → 1963-04-02T15:03:04Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:21–12:09 on the 1st, 11:20–12:08 on the 2nd.

    madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Navamī must be present during madhyāhna. It covers 0 of 48 minutes on the 1st and 48 of 48 on the 2nd.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102

  4. 04

    Tie-break

    Only one midday qualifies. No tie-break is needed.

    priority: unstated → only-day · margin 39104 s

  5. 05

    Ruling

    Rāma Navamī, Daqing, 1963: Tuesday 2 April.

    confidence: determinate

Say it like this

In Daqing, Rāma Navamī 1963 falls on Tuesday 2 April. Navamī runs from 23:00 on Mon 1 Apr to 23:03 on Tue 2 Apr and covers all of madhyāhna that midday.

ahargana.org/daqing/festivals/1963/rama-navami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 2 Apr
Ahargaṇa, classicalDisc centre, no refractionTue 2 Apr
compat-drikpanchangComparison profileTue 2 Apr
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/rama-navami · ruleset 2026.3-draft

Month
Caitra, amānta
Pakṣa · aṅga
Śukla · Navamī
Kāla
Madhyāhna
Priority
Unstated
Tie-break
Longer coverage, as a boundary
Reference
CRC 1955, p. 102

“S 9 Ramanavami (madhyahnavyapini, special with Punarvasu naks.), Rama jayanti.” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102. The row calls the day special when it falls with Punarvasu nakṣatra; the nakṣatra is not tested.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceNavamīMadhyāhna 1stCoveredMadhyāhna 2ndCoveredRuled
Los Angeles07:00 → 07:0311:3348 min11:330 min1 Apr
Chicago09:00 → 09:0311:3148 min11:310 min1 Apr
Jersey City10:00 → 10:0311:3748 min11:360 min1 Apr
Port of Spain11:00 → 11:0311:4648 min11:460 min1 Apr
London16:00 → 16:0312:410 min12:4148 min2 Apr
Durban17:00 → 17:0311:360 min11:3548 min2 Apr
Dubai19:00 → 19:0311:590 min11:5948 min2 Apr
Delhi20:30 → 20:3312:010 min12:0148 min2 Apr
Kolkata20:30 → 20:3311:170 min11:1748 min2 Apr
Singapore22:30 → 22:3312:150 min12:1548 min2 Apr
Sydney01:00 → 01:0311:350 min11:3548 min2 Apr
Suva03:00 → 03:0311:460 min11:4648 min2 Apr
Profile · tradition
pac-rp@2026.1 · smarta
Rule
rama-navami@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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