Ruling · Tila Caturthī · 2049

Friday 5 February

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 308 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 Friday 5 February

Taken. The only evening Caturthī reaches.

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

109 of 109 minutes covered

Evening of Saturday 6 February

Caturthī is absent from pradoṣa. Not taken.

17:45 sunsetpradoṣa ends 19:34
17:2117:4518:0918:3318:5719:2119:45

0 of 108 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 12:36 on Fri 5 Feb to 10:53 on Sat 6 Feb.

    2049-02-05T04:35:31Z → 2049-02-06T02:53:27Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:44–19:33 on the 5th, 17:45–19:34 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 108 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 18505 s

  5. 05

    Ruling

    Tila Caturthī, Baoding, 2049: Friday 5 February.

    confidence: determinate

Say it like this

In Baoding, Tila Caturthī 2049 falls on Friday 5 February. Caturthī runs from 12:36 on Fri 5 Feb to 10:53 on Sat 6 Feb and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/2049/tila-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 5 Feb
Ahargaṇa, classicalDisc centre, no refractionFri 5 Feb
compat-drikpanchangComparison profileFri 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 Angeles20:36 → 18:5317:2886 min17:290 min5 Feb
Chicago22:36 → 20:5317:11110 min17:130 min5 Feb
Jersey City23:36 → 21:5317:19110 min17:200 min5 Feb
Port of Spain00:36 → 22:5318:1198 min18:120 min5 Feb
London04:36 → 02:5316:58116 min16:590 min5 Feb
Durban06:36 → 04:5318:5185 min18:500 min5 Feb
Dubai08:36 → 06:5318:06103 min18:070 min5 Feb
Delhi10:06 → 08:2318:03104 min18:040 min5 Feb
Kolkata10:06 → 08:2317:27102 min17:280 min5 Feb
Singapore12:36 → 10:5319:2096 min19:200 min5 Feb
Sydney15:36 → 13:5319:5783 min19:560 min5 Feb
Suva16:36 → 14:5318:4589 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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