Ruling · Rāma Navamī (Rāma Jayantī) · 2012

Sunday 1 April

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 244 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 Saturday 31 March

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 Sunday 1 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 16:12 on Sat 31 Mar to 16:38 on Sun 1 Apr.

    2012-03-31T08:12:21Z → 2012-04-01T08:38:11Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:21–12:09 on the 31st, 11:20–12:08 on the 1st.

    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 31st and 48 of 48 on the 1st.

    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 14626 s

  5. 05

    Ruling

    Rāma Navamī, Daqing, 2012: Sunday 1 April.

    confidence: determinate

Say it like this

In Daqing, Rāma Navamī 2012 falls on Sunday 1 April. Navamī runs from 16:12 on Sat 31 Mar to 16:38 on Sun 1 Apr and covers all of madhyāhna that midday.

ahargana.org/daqing/festivals/2012/rama-navami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 1 Apr
Ahargaṇa, classicalDisc centre, no refractionSun 1 Apr
compat-drikpanchangComparison profileSun 1 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 31stCoveredMadhyāhna 1stCoveredRuled
Los Angeles01:12 → 01:3812:3348 min12:330 min31 Mar
Chicago03:12 → 03:3812:3148 min12:310 min31 Mar
Jersey City04:12 → 04:3812:3748 min12:360 min31 Mar
Port of Spain04:12 → 04:3811:4648 min11:460 min31 Mar
London09:12 → 09:3812:4148 min12:410 min31 Mar
Durban10:12 → 10:3811:3648 min11:350 min31 Mar
Dubai12:12 → 12:3811:5935 min11:5939 min1 Apr
Delhi13:42 → 14:0812:010 min12:0148 min1 Apr
Kolkata13:42 → 14:0811:170 min11:1748 min1 Apr
Singapore16:12 → 16:3812:450 min12:4448 min1 Apr
Sydney19:12 → 18:3812:350 min11:3548 min1 Apr
Suva20:12 → 20:3811:460 min11:4648 min1 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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