Ruling · Anaṅga Trayodaśī · 1913

Saturday 19 April

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 34 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 Friday 18 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 Saturday 19 April

Taken. Trayodaśī reaches neither midday; the rule takes the second day.

madhyāhna begins 11:54  12:42 madhyāhna ends
Trayodaśī ends 11:19:39
11:0611:3011:5412:1812:4213:0613:30

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 14:21 on Fri 18 Apr to 11:20 on Sat 19 Apr.

    1913-04-18T06:21:25Z → 1913-04-19T03:19:40Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:54–12:42 on the 18th, 11:54–12:42 on the 19th.

    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 18th and 0 of 48 on the 19th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102

  4. 04

    Tie-break

    Neither midday qualifies. The rule takes the second day.

    priority: purvaviddha → second-day · margin 2046 s

  5. 05

    Ruling

    Anaṅga Trayodaśī, Baoding, 1913: Saturday 19 April.

    confidence: determinate

Say it like this

In Baoding, Anaṅga Trayodaśī 1913 falls on Saturday 19 April. Trayodaśī runs from 14:21 on Fri 18 Apr to 11:20 on Sat 19 Apr, and reaches madhyāhna on neither day.

ahargana.org/baoding/festivals/1913/ananga-trayodashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 19 Apr
Ahargaṇa, classicalDisc centre, no refractionSat 19 Apr
compat-drikpanchangComparison profileSat 19 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 18thCoveredMadhyāhna 19thCoveredRuled
Los Angeles22:21 → 19:2011:2948 min11:280 min18 Apr
Chicago00:21 → 21:2011:2648 min11:260 min18 Apr
Jersey City01:21 → 22:2011:3248 min11:320 min18 Apr
Port of Spain02:21 → 23:2011:4248 min11:410 min18 Apr
London06:21 → 03:2011:3648 min11:360 min18 Apr
Durban08:21 → 05:2011:3148 min11:310 min18 Apr
Dubai10:02 → 07:0111:3548 min11:350 min18 Apr
Delhi11:51 → 08:5011:5748 min11:570 min18 Apr
Kolkata11:51 → 08:5011:129 min11:120 min18 Apr
Singapore13:21 → 10:2011:400 min11:400 min19 Apr
Sydney16:21 → 13:2011:300 min11:3048 min19 Apr
Suva18:16 → 15:1511:370 min11:3748 min19 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