Ruling · Tila Caturthī · 1920

Saturday 24 January

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 131 minutes.

Decide it for

BaodingDelhiKolkataSingaporeSydneyJersey City

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 Saturday 24 January

Taken. The only evening Caturthī reaches.

17:28 sunsetpradoṣa ends 19:21
17:0417:2817:5218:1618:4019:0419:2819:52

112 of 112 minutes covered

Evening of Sunday 25 January

Caturthī is absent from pradoṣa. Not taken.

17:29 sunsetpradoṣa ends 19:22
17:0517:2917:5318:1718:4119:0519:2919:53

0 of 112 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 15:17 on Sat 24 Jan to 15:06 on Sun 25 Jan.

    1920-01-24T07:17:10Z → 1920-01-25T07:06:22Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:28–19:21 on the 24th, 17:29–19:22 on the 25th.

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

  3. 03

    Rule

    Caturthī must be present during pradoṣa. It covers 112 of 112 minutes on the 24th and 0 of 112 on the 25th.

    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 7869 s

  5. 05

    Ruling

    Tila Caturthī, Baoding, 1920: Saturday 24 January.

    confidence: determinate

Say it like this

In Baoding, Tila Caturthī 1920 falls on Saturday 24 January. Caturthī runs from 15:17 on Sat 24 Jan to 15:06 on Sun 25 Jan and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1920/tila-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 24 Jan
Ahargaṇa, classicalDisc centre, no refractionSat 24 Jan
compat-drikpanchangComparison profileSat 24 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 24thCoveredSunset 25thCoveredRuled
Los Angeles23:17 → 23:0617:14109 min17:150 min24 Jan
Chicago01:17 → 01:0616:54114 min16:550 min24 Jan
Jersey City02:17 → 02:0617:03113 min17:040 min24 Jan
Port of Spain03:17 → 03:0618:0699 min18:070 min24 Jan
London07:17 → 07:0616:33122 min16:350 min24 Jan
Durban09:17 → 09:0618:5883 min18:580 min24 Jan
Dubai11:17 → 11:0617:56105 min17:570 min24 Jan
Delhi12:47 → 12:3617:52107 min17:530 min24 Jan
Kolkata12:47 → 12:3617:18104 min17:190 min24 Jan
Singapore14:17 → 14:0618:1896 min18:180 min24 Jan
Sydney17:17 → 17:0619:0680 min19:060 min24 Jan
Suva19:17 → 19:0618:4859 min18:4818 min24 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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