Ruling · Rāma Navamī · 1920

Sunday 28 March

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 577 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 28 March

Taken. The only midday Navamī reaches.

madhyāhna begins 11:22  12:10 madhyāhna ends
10:3410:5811:2211:4612:1012:3412:58

48 of 48 minutes covered

Midday of Monday 29 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

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

How it was decided

  1. 01

    Aṅga

    Navamī runs from 01:45 on Sun 28 Mar to 23:53 on Sun 28 Mar.

    1920-03-27T17:44:36Z → 1920-03-28T15:52:39Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:22–12:10 on the 28th, 11:21–12:09 on the 29th.

    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 28th and 0 of 48 on the 29th.

    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 34629 s

  5. 05

    Ruling

    Rāma Navamī, Daqing, 1920: Sunday 28 March.

    confidence: determinate

Say it like this

In Daqing, Rāma Navamī 1920 falls on Sunday 28 March. Navamī runs from 01:45 on Sun 28 Mar to 23:53 on Sun 28 Mar and covers all of madhyāhna that midday.

ahargana.org/daqing/festivals/1920/rama-navami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 28 Mar
Ahargaṇa, classicalDisc centre, no refractionSun 28 Mar
compat-drikpanchangComparison profileSun 28 Mar
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 27thCoveredMadhyāhna 28thCoveredRuled
Los Angeles09:45 → 07:5311:3548 min11:340 min27 Mar
Chicago11:45 → 09:5311:3236 min11:320 min27 Mar
Jersey City12:45 → 11:5311:380 min12:380 min28 Mar
Port of Spain13:45 → 11:5311:480 min11:475 min28 Mar
London17:45 → 16:5311:430 min12:4248 min28 Mar
Durban19:45 → 17:5311:370 min11:3748 min28 Mar
Dubai21:45 → 19:5312:010 min12:0048 min28 Mar
Delhi23:15 → 21:2312:030 min12:0348 min28 Mar
Kolkata23:15 → 21:2311:180 min11:1848 min28 Mar
Singapore00:45 → 22:5311:460 min11:4648 min28 Mar
Sydney03:45 → 01:5311:370 min11:3648 min28 Mar
Suva05:45 → 03:5311:480 min11:4848 min28 Mar
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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