Ruling · Anaṅga Trayodaśī · 1908

Tuesday 14 April

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 611 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 Monday 13 April

Trayodaśī is absent from madhyāhna. Not taken.

madhyāhna begins 11:55  12:43 madhyāhna ends
11:0711:3111:5512:1912:4313:0713:31

0 of 48 minutes covered

Midday of Tuesday 14 April

Taken. The only midday Trayodaśī reaches.

madhyāhna begins 11:55  12:43 madhyāhna ends
11:0711:3111:5512:1912:4313:0713:31

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 22:54 on Mon 13 Apr to 00:08 on Wed 15 Apr.

    1908-04-13T14:53:40Z → 1908-04-14T16:07:31Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:55–12:43 on the 13th, 11:55–12:43 on the 14th.

    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 13th and 48 of 48 on the 14th.

    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 36630 s

  5. 05

    Ruling

    Anaṅga Trayodaśī, Baoding, 1908: Tuesday 14 April.

    confidence: determinate

Say it like this

In Baoding, Anaṅga Trayodaśī 1908 falls on Tuesday 14 April. Trayodaśī runs from 22:54 on Mon 13 Apr to 00:08 on Wed 15 Apr and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1908/ananga-trayodashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 14 Apr
Ahargaṇa, classicalDisc centre, no refractionTue 14 Apr
compat-drikpanchangComparison profileTue 14 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 13thCoveredMadhyāhna 14thCoveredRuled
Los Angeles06:54 → 08:0811:3048 min11:300 min13 Apr
Chicago08:54 → 10:0811:2848 min11:270 min13 Apr
Jersey City09:54 → 11:0811:3348 min11:330 min13 Apr
Port of Spain10:54 → 12:0811:4348 min11:4225 min13 Apr
London14:54 → 16:0811:380 min11:3748 min14 Apr
Durban16:54 → 18:0811:320 min11:3248 min14 Apr
Dubai18:35 → 19:4911:370 min11:3648 min14 Apr
Delhi20:24 → 21:3811:580 min11:5848 min14 Apr
Kolkata20:24 → 21:3811:130 min11:1348 min14 Apr
Singapore21:54 → 23:0811:410 min11:4148 min14 Apr
Sydney00:54 → 02:0811:320 min11:3148 min14 Apr
Suva02:49 → 04:0311:380 min11:3848 min14 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