Ruling · Tila Caturthī · 2029

Thursday 18 January

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 569 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 Wednesday 17 January

Caturthī is absent from pradoṣa. Not taken.

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

0 of 114 minutes covered

Evening of Thursday 18 January

Taken. The only evening Caturthī reaches.

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

113 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 04:44 on Thu 18 Jan to 06:47 on Fri 19 Jan.

    2029-01-17T20:44:29Z → 2029-01-18T22:47:26Z

  2. 02

    Kāla

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

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

  3. 03

    Rule

    Caturthī must be present during pradoṣa. It covers 0 of 114 minutes on the 17th and 113 of 113 on the 18th.

    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 34128 s

  5. 05

    Ruling

    Tila Caturthī, Baoding, 2029: Thursday 18 January.

    confidence: determinate

Say it like this

In Baoding, Tila Caturthī 2029 falls on Thursday 18 January. Caturthī runs from 04:44 on Thu 18 Jan to 06:47 on Fri 19 Jan and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/2029/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 17thCoveredSunset 18thCoveredRuled
Los Angeles12:44 → 14:4717:09110 min17:100 min17 Jan
Chicago14:44 → 16:4716:47116 min16:480 min17 Jan
Jersey City15:44 → 17:4716:56115 min16:5750 min17 Jan
Port of Spain16:44 → 18:4718:0499 min18:0443 min17 Jan
London20:44 → 22:4716:240 min16:26124 min18 Jan
Durban22:44 → 00:4719:000 min19:0082 min18 Jan
Dubai00:44 → 02:4717:520 min17:53106 min18 Jan
Delhi02:14 → 04:1717:480 min17:49107 min18 Jan
Kolkata02:14 → 04:1717:140 min17:15105 min18 Jan
Singapore04:44 → 06:4719:160 min19:1796 min18 Jan
Sydney07:44 → 09:4720:080 min20:0879 min18 Jan
Suva08:44 → 10:4718:480 min18:4888 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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