Ruling · Tila Caturthī · 1936

Monday 27 January

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 513 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 Sunday 26 January

Caturthī is absent from pradoṣa. Not taken.

17:31 sunsetpradoṣa ends 19:23
17:0717:3117:5518:1918:4319:0719:3119:55

0 of 112 minutes covered

Evening of Monday 27 January

Taken. The only evening Caturthī reaches.

17:32 sunsetpradoṣa ends 19:24
17:0817:3217:5618:2018:4419:0819:3219:56

112 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 06:53 on Mon 27 Jan to 03:57 on Tue 28 Jan.

    1936-01-26T22:53:20Z → 1936-01-27T19:56:58Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:31–19:23 on the 26th, 17:32–19:24 on the 27th.

    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 112 minutes on the 26th and 112 of 112 on the 27th.

    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 30805 s

  5. 05

    Ruling

    Tila Caturthī, Baoding, 1936: Monday 27 January.

    confidence: determinate

Say it like this

In Baoding, Tila Caturthī 1936 falls on Monday 27 January. Caturthī runs from 06:53 on Mon 27 Jan to 03:57 on Tue 28 Jan and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1936/tila-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 27 Jan
Ahargaṇa, classicalDisc centre, no refractionMon 27 Jan
compat-drikpanchangComparison profileMon 27 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 26thCoveredSunset 27thCoveredRuled
Los Angeles14:53 → 11:5717:16109 min17:170 min26 Jan
Chicago16:53 → 13:5716:57114 min16:580 min26 Jan
Jersey City17:53 → 14:5717:0565 min17:060 min26 Jan
Port of Spain18:53 → 15:5718:0753 min18:080 min26 Jan
London22:53 → 19:5716:370 min16:39121 min27 Jan
Durban00:53 → 21:5718:580 min18:5783 min27 Jan
Dubai02:53 → 23:5717:580 min17:59105 min27 Jan
Delhi04:23 → 01:2717:540 min17:55106 min27 Jan
Kolkata04:23 → 01:2717:200 min17:21104 min27 Jan
Singapore06:13 → 03:1718:390 min18:3996 min27 Jan
Sydney08:53 → 05:5719:050 min19:0581 min27 Jan
Suva10:53 → 07:5718:480 min18:4888 min27 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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