Ruling · Tila Caturthī · 1946

Tuesday 5 February

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 507 minutes.

Decide it for

38°52′ N 115°28′ E · Asia/Shanghai · GeoNames 1816971

The two evenings

One ghaṭī is 24 minutes. Pradoṣa is 2 muhūrtas after sunset.

Evening of Tuesday 5 February

Taken. The only evening Caturthī reaches.

17:43 sunsetpradoṣa ends 19:32
17:1917:4318:0718:3118:5519:1919:43

109 of 109 minutes covered

Evening of Wednesday 6 February

Caturthī is absent from pradoṣa. Not taken.

17:44 sunsetpradoṣa ends 19:33
17:2017:4418:0818:3218:5619:2019:44

0 of 109 minutes covered

Caturthī presentPradoṣa, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Caturthī runs from 09:16 on Tue 5 Feb to 07:29 on Wed 6 Feb.

    1946-02-05T01:15:33Z → 1946-02-05T23:28:41Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:43–19:32 on the 5th, 17:44–19:33 on the 6th.

    pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Caturthī must be present during pradoṣa. It covers 109 of 109 minutes on the 5th and 0 of 109 on the 6th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105

  4. 04

    Tie-break

    Only one evening qualifies. No tie-break is needed.

    priority: unstated → only-day · margin 30441 s

  5. 05

    Ruling

    Tila Caturthī, Baoding, 1946: Tuesday 5 February.

    confidence: determinate

Say it like this

In Baoding, Tila Caturthī 1946 falls on Tuesday 5 February. Caturthī runs from 09:16 on Tue 5 Feb to 07:29 on Wed 6 Feb and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1946/tila-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 5 Feb
Ahargaṇa, classicalDisc centre, no refractionTue 5 Feb
compat-drikpanchangComparison profileTue 5 Feb
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/tila-chaturthi · ruleset 2026.3-draft

Month
Māgha, amānta
Pakṣa · aṅga
Śukla · Caturthī
Kāla
Pradoṣa
Priority
Unstated
Tie-break
Longer coverage, as a boundary
Reference
CRC 1955, p. 105

“S 4 Tila caturthi and Kunda caturthi (pradosavyapini), Varada caturthi (Bengal & Orissa), Ganesa caturthi, Ganesa jayanti (madhyahnavyapini purvaviddha).” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceCaturthīSunset 5thCoveredSunset 6thCoveredRuled
Los Angeles17:16 → 15:2917:270 min17:280 min4 Feb
Chicago19:16 → 17:2917:1018 min17:110 min5 Feb
Jersey City20:16 → 18:2917:1871 min17:190 min5 Feb
Port of Spain21:16 → 19:2918:1177 min18:120 min5 Feb
London01:16 → 23:2916:56117 min16:580 min5 Feb
Durban03:16 → 01:2918:5285 min18:510 min5 Feb
Dubai05:16 → 03:2918:06103 min18:060 min5 Feb
Delhi06:46 → 04:5918:03105 min18:040 min5 Feb
Kolkata06:46 → 04:5917:27102 min17:270 min5 Feb
Singapore08:46 → 06:5918:5096 min18:510 min5 Feb
Sydney11:16 → 09:2918:5883 min18:570 min5 Feb
Suva13:16 → 11:2918:4589 min18:450 min5 Feb
Profile · tradition
pac-rp@2026.1 · smarta
Rule
tila-chaturthi@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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