Ruling · Rāma Navamī · 1902

Wednesday 16 April

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 637 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 Wednesday 16 April

Taken. The only midday Navamī reaches.

madhyāhna begins 11:17  12:05 madhyāhna ends
10:2910:5311:1711:4112:0512:2912:53

48 of 48 minutes covered

Midday of Thursday 17 April

Navamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:16  12:04 madhyāhna ends
10:2810:5211:1611:4012:0412:2812:52

0 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 00:40 on Wed 16 Apr to 23:30 on Wed 16 Apr.

    1902-04-15T16:39:39Z → 1902-04-16T15:30:04Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:17–12:05 on the 16th, 11:16–12:04 on the 17th.

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

  3. 03

    Rule

    Navamī must be present during madhyāhna. It covers 48 of 48 minutes on the 16th and 0 of 48 on the 17th.

    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 38212 s

  5. 05

    Ruling

    Rāma Navamī, Daqing, 1902: Wednesday 16 April.

    confidence: determinate

Say it like this

In Daqing, Rāma Navamī 1902 falls on Wednesday 16 April. Navamī runs from 00:40 on Wed 16 Apr to 23:30 on Wed 16 Apr and covers all of madhyāhna that midday.

ahargana.org/daqing/festivals/1902/rama-navami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 16 Apr
Ahargaṇa, classicalDisc centre, no refractionWed 16 Apr
compat-drikpanchangComparison profileWed 16 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 15thCoveredMadhyāhna 16thCoveredRuled
Los Angeles08:40 → 07:3011:2948 min11:290 min15 Apr
Chicago10:40 → 09:3011:2748 min11:270 min15 Apr
Jersey City11:40 → 10:3011:3341 min11:330 min15 Apr
Port of Spain12:40 → 11:3011:420 min11:420 min16 Apr
London16:40 → 15:3011:370 min11:3748 min16 Apr
Durban18:10 → 17:0011:020 min11:0248 min16 Apr
Dubai20:21 → 19:1111:360 min11:3648 min16 Apr
Delhi22:01 → 20:5111:490 min11:4848 min16 Apr
Kolkata22:01 → 20:5111:040 min11:0448 min16 Apr
Singapore23:35 → 22:2511:360 min11:3648 min16 Apr
Sydney02:40 → 01:3011:310 min11:3148 min16 Apr
Suva04:35 → 03:2511:380 min11:3748 min16 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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