Ruling · Tila Caturthī · 1933

Sunday 29 January

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 484 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 Saturday 28 January

Caturthī is absent from pradoṣa. Not taken.

17:34 sunsetpradoṣa ends 19:25
17:1017:3417:5818:2218:4619:1019:3419:58

0 of 111 minutes covered

Evening of Sunday 29 January

Taken. The only evening Caturthī reaches.

17:35 sunsetpradoṣa ends 19:26
17:1117:3517:5918:2318:4719:1119:3519:59

111 of 111 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 03:29 on Sun 29 Jan to 03:36 on Mon 30 Jan.

    1933-01-28T19:29:13Z → 1933-01-29T19:36:04Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:34–19:25 on the 28th, 17:35–19:26 on the 29th.

    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 111 minutes on the 28th and 111 of 111 on the 29th.

    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 29049 s

  5. 05

    Ruling

    Tila Caturthī, Baoding, 1933: Sunday 29 January.

    confidence: determinate

Say it like this

In Baoding, Tila Caturthī 1933 falls on Sunday 29 January. Caturthī runs from 03:29 on Sun 29 Jan to 03:36 on Mon 30 Jan and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1933/tila-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 29 Jan
Ahargaṇa, classicalDisc centre, no refractionSun 29 Jan
compat-drikpanchangComparison profileSun 29 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 28thCoveredSunset 29thCoveredRuled
Los Angeles11:29 → 11:3617:19108 min17:200 min28 Jan
Chicago13:29 → 13:3617:00113 min17:010 min28 Jan
Jersey City14:29 → 14:3617:08112 min17:100 min28 Jan
Port of Spain15:29 → 15:3618:0899 min18:090 min28 Jan
London19:29 → 19:3616:420 min16:44120 min29 Jan
Durban21:29 → 21:3618:560 min18:5684 min29 Jan
Dubai23:29 → 23:3618:000 min18:01104 min29 Jan
Delhi00:59 → 01:0617:560 min17:57106 min29 Jan
Kolkata00:59 → 01:0617:220 min17:22103 min29 Jan
Singapore02:49 → 02:5618:390 min18:3996 min29 Jan
Sydney05:29 → 05:3619:030 min19:0382 min29 Jan
Suva07:29 → 07:3618:480 min18:4789 min29 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

About Ahargaṇa