Ruling · Rāma Navamī · 2020

Thursday 2 April

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 309 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 Thursday 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

Midday of Friday 3 April

Navamī is absent from madhyāhna. Not taken.

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

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 06:11 on Thu 2 Apr to 05:13 on Fri 3 Apr.

    2020-04-01T22:10:39Z → 2020-04-02T21:13:25Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:20–12:08 on the 2nd, 11:20–12:08 on the 3rd.

    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 2nd and 0 of 48 on the 3rd.

    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 18561 s

  5. 05

    Ruling

    Rāma Navamī, Daqing, 2020: Thursday 2 April.

    confidence: determinate

Say it like this

In Daqing, Rāma Navamī 2020 falls on Thursday 2 April. Navamī runs from 06:11 on Thu 2 Apr to 05:13 on Fri 3 Apr and covers all of madhyāhna that midday.

ahargana.org/daqing/festivals/2020/rama-navami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 2 Apr
Ahargaṇa, classicalDisc centre, no refractionThu 2 Apr
compat-drikpanchangComparison profileThu 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 Angeles15:11 → 14:1312:330 min12:3348 min2 Apr
Chicago17:11 → 16:1312:310 min12:3048 min2 Apr
Jersey City18:11 → 17:1312:360 min12:3648 min2 Apr
Port of Spain18:11 → 17:1311:460 min11:4648 min2 Apr
London23:11 → 22:1312:410 min12:4048 min2 Apr
Durban00:11 → 23:1311:350 min11:3548 min2 Apr
Dubai02:11 → 01:1311:590 min11:5848 min2 Apr
Delhi03:41 → 02:4312:010 min12:0148 min2 Apr
Kolkata03:41 → 02:4311:170 min11:1648 min2 Apr
Singapore06:11 → 05:1312:440 min12:4448 min2 Apr
Sydney09:11 → 08:1312:350 min12:3448 min2 Apr
Suva10:11 → 09:1311:460 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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