Ruling · Anaṅga Trayodaśī · 2013

Tuesday 23 April

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 93 minutes.

Decide it for

BaodingDelhiKolkataSingaporeSydneyJersey City

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 Tuesday 23 April

Taken. The only midday Trayodaśī reaches.

madhyāhna begins 11:53  12:41 madhyāhna ends
11:0511:2911:5312:1712:4113:0513:29

48 of 48 minutes covered

Midday of Wednesday 24 April

Trayodaśī is absent from madhyāhna. Not taken.

madhyāhna begins 11:53  12:41 madhyāhna ends
11:0511:2911:5312:1712:4113:0513:29

0 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 10:19 on Tue 23 Apr to 08:44 on Wed 24 Apr.

    2013-04-23T02:19:19Z → 2013-04-24T00:44:15Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 23rd, 11:53–12:41 on the 24th.

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

  3. 03

    Rule

    Trayodaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 23rd and 0 of 48 on the 24th.

    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 5609 s

  5. 05

    Ruling

    Anaṅga Trayodaśī, Baoding, 2013: Tuesday 23 April.

    confidence: determinate

Say it like this

In Baoding, Anaṅga Trayodaśī 2013 falls on Tuesday 23 April. Trayodaśī runs from 10:19 on Tue 23 Apr to 08:44 on Wed 24 Apr and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2013/ananga-trayodashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 23 Apr
Ahargaṇa, classicalDisc centre, no refractionTue 23 Apr
compat-drikpanchangComparison profileTue 23 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 23rdCoveredMadhyāhna 24thCoveredRuled
Los Angeles19:19 → 17:4412:2748 min12:270 min23 Apr
Chicago21:19 → 19:4412:2548 min12:250 min23 Apr
Jersey City22:19 → 20:4412:3148 min12:310 min23 Apr
Port of Spain22:19 → 20:4411:4048 min11:400 min23 Apr
London03:19 → 01:4412:3548 min12:350 min23 Apr
Durban04:19 → 02:4411:3048 min11:300 min23 Apr
Dubai06:19 → 04:4411:5348 min11:530 min23 Apr
Delhi07:49 → 06:1411:5648 min11:550 min23 Apr
Kolkata07:49 → 06:1411:1148 min11:110 min23 Apr
Singapore10:19 → 08:4412:3948 min12:390 min23 Apr
Sydney12:19 → 10:4411:290 min11:290 min24 Apr
Suva14:19 → 12:4411:410 min11:4048 min24 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

About Ahargaṇa