Ruling · Tila Caturthī · 1982

Thursday 28 January

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 161 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 Thursday 28 January

Taken. The only evening Caturthī reaches.

17:34 sunsetpradoṣa ends 19:25
17:1017:3417:5818:2218:4619:1019:3419:58

111 of 111 minutes covered

Evening of Friday 29 January

Caturthī is absent from pradoṣa. Not taken.

17:35 sunsetpradoṣa ends 19:26
17:1117:3517:5918:2318:4719:1119:3519:59

0 of 111 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 14:53 on Thu 28 Jan to 14:37 on Fri 29 Jan.

    1982-01-28T06:52:46Z → 1982-01-29T06:36:42Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:34–19:25 on the 28th, 17:35–19:26 on the 29th.

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

  3. 03

    Rule

    Caturthī must be present during pradoṣa. It covers 111 of 111 minutes on the 28th and 0 of 111 on the 29th.

    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 9666 s

  5. 05

    Ruling

    Tila Caturthī, Baoding, 1982: Thursday 28 January.

    confidence: determinate

Say it like this

In Baoding, Tila Caturthī 1982 falls on Thursday 28 January. Caturthī runs from 14:53 on Thu 28 Jan to 14:37 on Fri 29 Jan and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1982/tila-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 28 Jan
Ahargaṇa, classicalDisc centre, no refractionThu 28 Jan
compat-drikpanchangComparison profileThu 28 Jan
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 28thCoveredSunset 29thCoveredRuled
Los Angeles22:53 → 22:3717:19108 min17:200 min28 Jan
Chicago00:53 → 00:3717:00113 min17:010 min28 Jan
Jersey City01:53 → 01:3717:09112 min17:100 min28 Jan
Port of Spain02:53 → 02:3718:0899 min18:090 min28 Jan
London06:53 → 06:3716:42120 min16:440 min28 Jan
Durban08:53 → 08:3718:5683 min18:560 min28 Jan
Dubai10:53 → 10:3718:00104 min18:010 min28 Jan
Delhi12:23 → 12:0717:56106 min17:570 min28 Jan
Kolkata12:23 → 12:0717:22103 min17:220 min28 Jan
Singapore14:53 → 14:3719:1996 min19:190 min28 Jan
Sydney17:53 → 17:3720:0381 min20:030 min28 Jan
Suva18:53 → 18:3718:4883 min18:470 min28 Jan
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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