Ruling · Rāma Navamī (Rāma Jayantī) · 2017

Wednesday 5 April

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 27 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 Tuesday 4 April

Navamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:19  12:07 madhyāhna ends
10:3110:5511:1911:4312:0712:3112:55

0 of 48 minutes covered

Midday of Wednesday 5 April

Taken. The only midday Navamī reaches.

madhyāhna begins 11:19  12:07 madhyāhna ends
Navamī ends 12:34:00
10:3110:5511:1911:4312:0712:3112:55

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 13:51 on Tue 4 Apr to 12:34 on Wed 5 Apr.

    2017-04-04T05:50:32Z → 2017-04-05T04:34:00Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:19–12:07 on the 4th, 11:19–12:07 on the 5th.

    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 4th and 48 of 48 on the 5th.

    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 1610 s

  5. 05

    Ruling

    Rāma Navamī, Daqing, 2017: Wednesday 5 April.

    confidence: determinate

Say it like this

In Daqing, Rāma Navamī 2017 falls on Wednesday 5 April. Navamī runs from 13:51 on Tue 4 Apr to 12:34 on Wed 5 Apr and covers all of madhyāhna that midday.

ahargana.org/daqing/festivals/2017/rama-navami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 5 Apr
Ahargaṇa, classicalDisc centre, no refractionWed 5 Apr
compat-drikpanchangComparison profileWed 5 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 4thCoveredMadhyāhna 5thCoveredRuled
Los Angeles22:51 → 21:3412:3248 min12:320 min4 Apr
Chicago00:51 → 23:3412:3048 min12:300 min4 Apr
Jersey City01:51 → 00:3412:3648 min12:350 min4 Apr
Port of Spain01:51 → 00:3411:4548 min11:450 min4 Apr
London06:51 → 05:3412:4048 min12:400 min4 Apr
Durban07:51 → 06:3411:3548 min11:340 min4 Apr
Dubai09:51 → 08:3411:5848 min11:580 min4 Apr
Delhi11:21 → 10:0412:0048 min12:000 min4 Apr
Kolkata11:21 → 10:0411:1643 min11:150 min4 Apr
Singapore13:51 → 12:3412:440 min12:430 min5 Apr
Sydney15:51 → 14:3411:340 min11:3448 min5 Apr
Suva17:51 → 16:3411:450 min11:4548 min5 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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