Ruling · Tila Caturthī · 1934

Thursday 18 January

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 329 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 Thursday 18 January

Taken. The only evening Caturthī reaches.

17:22 sunsetpradoṣa ends 19:16
16:5817:2217:4618:1018:3418:5819:2219:46

114 of 114 minutes covered

Evening of Friday 19 January

Caturthī is absent from pradoṣa. Not taken.

17:23 sunsetpradoṣa ends 19:17
16:5917:2317:4718:1118:3518:5919:2319:47

0 of 113 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 11:53 on Thu 18 Jan to 09:40 on Fri 19 Jan.

    1934-01-18T03:53:09Z → 1934-01-19T01:39:44Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:22–19:16 on the 18th, 17:23–19:17 on the 19th.

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

  3. 03

    Rule

    Caturthī must be present during pradoṣa. It covers 114 of 114 minutes on the 18th and 0 of 113 on the 19th.

    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 19748 s

  5. 05

    Ruling

    Tila Caturthī, Baoding, 1934: Thursday 18 January.

    confidence: determinate

Say it like this

In Baoding, Tila Caturthī 1934 falls on Thursday 18 January. Caturthī runs from 11:53 on Thu 18 Jan to 09:40 on Fri 19 Jan and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1934/tila-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 18 Jan
Ahargaṇa, classicalDisc centre, no refractionThu 18 Jan
compat-drikpanchangComparison profileThu 18 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 18thCoveredSunset 19thCoveredRuled
Los Angeles19:53 → 17:4017:0931 min17:100 min18 Jan
Chicago21:53 → 19:4016:47116 min16:490 min18 Jan
Jersey City22:53 → 20:4016:56115 min16:570 min18 Jan
Port of Spain23:53 → 21:4018:0499 min18:040 min18 Jan
London03:53 → 01:4016:24124 min16:260 min18 Jan
Durban05:53 → 03:4019:0082 min19:000 min18 Jan
Dubai07:53 → 05:4017:52106 min17:530 min18 Jan
Delhi09:23 → 07:1017:48108 min17:490 min18 Jan
Kolkata09:23 → 07:1017:15105 min17:150 min18 Jan
Singapore11:13 → 09:0018:3696 min18:370 min18 Jan
Sydney13:53 → 11:4019:0879 min19:080 min18 Jan
Suva15:53 → 13:4018:4988 min18:490 min18 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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