Ruling · Tila Caturthī · 1968

Friday 2 February

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 234 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 1 February

Caturthī is absent from pradoṣa. Not taken.

17:38 sunsetpradoṣa ends 19:28
17:1417:3818:0218:2618:5019:1419:3820:02

0 of 110 minutes covered

Evening of Friday 2 February

Taken. The only evening Caturthī reaches.

17:39 sunsetpradoṣa ends 19:29
17:1517:3918:0318:2718:5119:1519:3920:03

110 of 110 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 23:22 on Thu 1 Feb to 00:24 on Sat 3 Feb.

    1968-02-01T15:22:10Z → 1968-02-02T16:23:54Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:38–19:28 on the 1st, 17:39–19:29 on the 2nd.

    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 110 minutes on the 1st and 110 of 110 on the 2nd.

    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 14043 s

  5. 05

    Ruling

    Tila Caturthī, Baoding, 1968: Friday 2 February.

    confidence: determinate

Say it like this

In Baoding, Tila Caturthī 1968 falls on Friday 2 February. Caturthī runs from 23:22 on Thu 1 Feb to 00:24 on Sat 3 Feb and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1968/tila-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 2 Feb
Ahargaṇa, classicalDisc centre, no refractionFri 2 Feb
compat-drikpanchangComparison profileFri 2 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 1stCoveredSunset 2ndCoveredRuled
Los Angeles07:22 → 08:2417:23108 min17:240 min1 Feb
Chicago09:22 → 10:2417:05112 min17:060 min1 Feb
Jersey City10:22 → 11:2417:13111 min17:140 min1 Feb
Port of Spain11:22 → 12:2418:1099 min18:100 min1 Feb
London15:22 → 16:2416:48119 min16:500 min1 Feb
Durban17:22 → 18:2418:5484 min18:540 min1 Feb
Dubai19:22 → 20:2418:0324 min18:03104 min2 Feb
Delhi20:52 → 21:5417:590 min18:00105 min2 Feb
Kolkata20:52 → 21:5417:240 min17:25103 min2 Feb
Singapore22:52 → 23:5418:500 min18:5096 min2 Feb
Sydney01:22 → 02:2419:010 min19:0082 min2 Feb
Suva03:22 → 04:2418:470 min18:4789 min2 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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