Ruling · Anaṅga Trayodaśī · 1902

Sunday 20 April

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 621 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 Saturday 19 April

Trayodaśī is absent from madhyāhna. Not taken.

madhyāhna begins 11:54  12:42 madhyāhna ends
11:0611:3011:5412:1812:4213:0613:30

0 of 48 minutes covered

Midday of Sunday 20 April

Taken. The only midday Trayodaśī reaches.

madhyāhna begins 11:54  12:42 madhyāhna ends
11:0611:3011:5412:1812:4213:0613:30

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 23:03 on Sat 19 Apr to 23:52 on Sun 20 Apr.

    1902-04-19T15:02:32Z → 1902-04-20T15:51:59Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:54–12:42 on the 19th, 11:54–12:42 on the 20th.

    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 19th and 48 of 48 on the 20th.

    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 37242 s

  5. 05

    Ruling

    Anaṅga Trayodaśī, Baoding, 1902: Sunday 20 April.

    confidence: determinate

Say it like this

In Baoding, Anaṅga Trayodaśī 1902 falls on Sunday 20 April. Trayodaśī runs from 23:03 on Sat 19 Apr to 23:52 on Sun 20 Apr and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1902/ananga-trayodashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 20 Apr
Ahargaṇa, classicalDisc centre, no refractionSun 20 Apr
compat-drikpanchangComparison profileSun 20 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 19thCoveredMadhyāhna 20thCoveredRuled
Los Angeles07:03 → 07:5211:2848 min11:280 min19 Apr
Chicago09:03 → 09:5211:2648 min11:260 min19 Apr
Jersey City10:03 → 10:5211:3248 min11:320 min19 Apr
Port of Spain11:03 → 11:5211:4148 min11:4111 min19 Apr
London15:03 → 15:5211:360 min11:3648 min20 Apr
Durban16:33 → 17:2211:010 min11:0148 min20 Apr
Dubai18:44 → 19:3311:350 min11:3548 min20 Apr
Delhi20:24 → 21:1311:480 min11:4748 min20 Apr
Kolkata20:24 → 21:1311:030 min11:0348 min20 Apr
Singapore21:58 → 22:4711:350 min11:3548 min20 Apr
Sydney01:03 → 01:5211:300 min11:3048 min20 Apr
Suva02:58 → 03:4711:370 min11:3648 min20 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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