Ruling · Anaṅga Trayodaśī · 2004

Saturday 3 April

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 605 minutes.

Decide it for

38°52′ N 115°28′ E · Asia/Shanghai · GeoNames 1816971

The two middays

One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.

Midday of Friday 2 April

Trayodaśī is absent from madhyāhna. Not taken.

madhyāhna begins 11:58  12:46 madhyāhna ends
11:1011:3411:5812:2212:4613:1013:34

0 of 48 minutes covered

Midday of Saturday 3 April

Taken. The only midday Trayodaśī reaches.

madhyāhna begins 11:58  12:46 madhyāhna ends
11:1011:3411:5812:2212:4613:1013:34

48 of 48 minutes covered

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

How it was decided

  1. 01

    Aṅga

    Trayodaśī runs from 23:53 on Fri 2 Apr to 22:50 on Sat 3 Apr.

    2004-04-02T15:52:48Z → 2004-04-03T14:50:17Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:58–12:46 on the 2nd, 11:58–12:46 on the 3rd.

    madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Trayodaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 2nd and 48 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: purvaviddha → only-day · margin 36271 s

  5. 05

    Ruling

    Anaṅga Trayodaśī, Baoding, 2004: Saturday 3 April.

    confidence: determinate

Say it like this

In Baoding, Anaṅga Trayodaśī 2004 falls on Saturday 3 April. Trayodaśī runs from 23:53 on Fri 2 Apr to 22:50 on Sat 3 Apr and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2004/ananga-trayodashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 3 Apr
Ahargaṇa, classicalDisc centre, no refractionSat 3 Apr
compat-drikpanchangComparison profileSat 3 Apr
No institution has a recorded ruling for Baoding.

Institutional rulings are recorded with a source address, and are never edited to agree.

The rule, as data

/rules/ananga-trayodashi · ruleset 2026.3-draft

Month
Caitra, amānta
Pakṣa · aṅga
Śukla · Trayodaśī
Kāla
Madhyāhna
Priority
Pūrvaviddhā
Tie-break
First day
Reference
CRC 1955, p. 102

“S 13 Ananga trayodasi (purvaviddha), Mahavira jayanti (Jain).” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceTrayodaśīMadhyāhna 2ndCoveredMadhyāhna 3rdCoveredRuled
Los Angeles07:53 → 06:5011:3348 min11:320 min2 Apr
Chicago09:53 → 08:5011:3048 min11:300 min2 Apr
Jersey City10:53 → 09:5011:3648 min11:360 min2 Apr
Port of Spain11:53 → 10:5011:4641 min11:450 min2 Apr
London16:53 → 15:5012:410 min12:4048 min3 Apr
Durban17:53 → 16:5011:350 min11:3548 min3 Apr
Dubai19:53 → 18:5011:580 min11:5848 min3 Apr
Delhi21:23 → 20:2012:010 min12:0148 min3 Apr
Kolkata21:23 → 20:2011:160 min11:1648 min3 Apr
Singapore23:53 → 22:5012:440 min12:4448 min3 Apr
Sydney01:53 → 00:5011:350 min11:3448 min3 Apr
Suva03:53 → 02:5011:460 min11:4648 min3 Apr
Profile · tradition
pac-rp@2026.1 · smarta
Rule
ananga-trayodashi@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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