Ruling · Tila Caturthī · 2030

Wednesday 6 February

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 221 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 Tuesday 5 February

Caturthī is absent from pradoṣa. Not taken.

17:43 sunsetpradoṣa ends 19:32
17:1917:4318:0718:3118:5519:1919:43

0 of 109 minutes covered

Evening of Wednesday 6 February

Taken. The only evening Caturthī reaches.

17:45 sunsetpradoṣa ends 19:33
17:2117:4518:0918:3318:5719:2119:45

109 of 109 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 23:14 on Tue 5 Feb to 00:11 on Thu 7 Feb.

    2030-02-05T15:13:38Z → 2030-02-06T16:11:29Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:43–19:32 on the 5th, 17:45–19:33 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 0 of 109 minutes on the 5th and 109 of 109 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 13275 s

  5. 05

    Ruling

    Tila Caturthī, Baoding, 2030: Wednesday 6 February.

    confidence: determinate

Say it like this

In Baoding, Tila Caturthī 2030 falls on Wednesday 6 February. Caturthī runs from 23:14 on Tue 5 Feb to 00:11 on Thu 7 Feb and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/2030/tila-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 6 Feb
Ahargaṇa, classicalDisc centre, no refractionWed 6 Feb
compat-drikpanchangComparison profileWed 6 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 Angeles07:14 → 08:1117:27107 min17:280 min5 Feb
Chicago09:14 → 10:1117:11110 min17:120 min5 Feb
Jersey City10:14 → 11:1117:19110 min17:200 min5 Feb
Port of Spain11:14 → 12:1118:1198 min18:120 min5 Feb
London15:14 → 16:1116:57117 min16:590 min5 Feb
Durban17:14 → 18:1118:5185 min18:500 min5 Feb
Dubai19:14 → 20:1118:0635 min18:07103 min6 Feb
Delhi20:44 → 21:4118:030 min18:04104 min6 Feb
Kolkata20:44 → 21:4117:270 min17:28102 min6 Feb
Singapore23:14 → 00:1119:200 min19:2096 min6 Feb
Sydney02:14 → 03:1119:570 min19:5684 min6 Feb
Suva03:14 → 04:1118:450 min18:4590 min6 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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