Ruling · Anaṅga Trayodaśī · 2033

Tuesday 12 April

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 422 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 11 April

Trayodaśī is absent from madhyāhna. Not taken.

madhyāhna begins 11:56  12:44 madhyāhna ends
11:0811:3211:5612:2012:4413:0813:32

0 of 48 minutes covered

Midday of Tuesday 12 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 19:46 on Mon 11 Apr to 22:23 on Tue 12 Apr.

    2033-04-11T11:45:57Z → 2033-04-12T14:23:11Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:56–12:44 on the 11th, 11:55–12:43 on the 12th.

    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 11th and 48 of 48 on the 12th.

    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 25344 s

  5. 05

    Ruling

    Anaṅga Trayodaśī, Baoding, 2033: Tuesday 12 April.

    confidence: determinate

Say it like this

In Baoding, Anaṅga Trayodaśī 2033 falls on Tuesday 12 April. Trayodaśī runs from 19:46 on Mon 11 Apr to 22:23 on Tue 12 Apr and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2033/ananga-trayodashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 12 Apr
Ahargaṇa, classicalDisc centre, no refractionTue 12 Apr
compat-drikpanchangComparison profileTue 12 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 11thCoveredMadhyāhna 12thCoveredRuled
Los Angeles04:46 → 07:2312:3048 min12:300 min11 Apr
Chicago06:46 → 09:2312:2848 min12:280 min11 Apr
Jersey City07:46 → 10:2312:3448 min12:330 min11 Apr
Port of Spain07:46 → 10:2311:4348 min11:430 min11 Apr
London12:46 → 15:2312:3840 min12:3848 min11 Apr
Durban13:46 → 16:2311:330 min11:3248 min12 Apr
Dubai15:46 → 18:2311:560 min11:5648 min12 Apr
Delhi17:16 → 19:5311:580 min11:5848 min12 Apr
Kolkata17:16 → 19:5311:140 min11:1348 min12 Apr
Singapore19:46 → 22:2312:420 min12:4148 min12 Apr
Sydney21:46 → 00:2311:320 min11:3248 min12 Apr
Suva23:46 → 02:2311:430 min11:4348 min12 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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