Ruling · Rāma Navamī · 2079

Monday 10 April

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 15 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 Sunday 9 April

Navamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:18  12:06 madhyāhna ends
10:3010:5411:1811:4212:0612:3012:54

0 of 48 minutes covered

Midday of Monday 10 April

Taken. The only midday Navamī reaches.

madhyāhna begins 11:18  12:06 madhyāhna ends
Navamī ends 11:33:24
10:3010:5411:1811:4212:0612:3012:54

15 of 48 minutes covered, the first 15

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

How it was decided

  1. 01

    Aṅga

    Navamī runs from 12:55 on Sun 9 Apr to 11:33 on Mon 10 Apr.

    2079-04-09T04:55:03Z → 2079-04-10T03:33:24Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:18–12:06 on the 9th, 11:18–12:06 on the 10th.

    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 9th and 15 of 48 on the 10th.

    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 922 s

  5. 05

    Ruling

    Rāma Navamī, Daqing, 2079: Monday 10 April.

    confidence: determinate

Say it like this

In Daqing, Rāma Navamī 2079 falls on Monday 10 April. Navamī runs from 12:55 on Sun 9 Apr to 11:33 on Mon 10 Apr and covers 15 of 48 minutes of madhyāhna that midday.

ahargana.org/daqing/festivals/2079/rama-navami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 10 Apr
Ahargaṇa, classicalDisc centre, no refractionMon 10 Apr
compat-drikpanchangComparison profileMon 10 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 9thCoveredMadhyāhna 10thCoveredRuled
Los Angeles21:55 → 20:3312:3148 min12:310 min9 Apr
Chicago23:55 → 22:3312:2948 min12:280 min9 Apr
Jersey City00:55 → 23:3312:3448 min12:340 min9 Apr
Port of Spain00:55 → 23:3311:4448 min11:440 min9 Apr
London05:55 → 04:3312:3948 min12:390 min9 Apr
Durban06:55 → 05:3311:3348 min11:330 min9 Apr
Dubai08:55 → 07:3311:5748 min11:560 min9 Apr
Delhi10:25 → 09:0311:5948 min11:590 min9 Apr
Kolkata10:25 → 09:0311:1548 min11:140 min9 Apr
Singapore12:55 → 11:3312:4235 min12:420 min9 Apr
Sydney14:55 → 13:3311:330 min11:3348 min10 Apr
Suva16:55 → 15:3311:440 min11:4448 min10 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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