Ruling · Tila Caturthī · 1941

Friday 31 January

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 88 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 Thursday 30 January

Caturthī is absent from pradoṣa. Not taken.

17:36 sunsetpradoṣa ends 19:27
17:1217:3618:0018:2418:4819:1219:3620:00

0 of 111 minutes covered

Evening of Friday 31 January

Taken. The only evening Caturthī reaches.

17:37 sunsetpradoṣa ends 19:28
17:1317:3718:0118:2518:4919:1319:3720:01

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 20:55 on Thu 30 Jan to 22:46 on Fri 31 Jan.

    1941-01-30T12:54:36Z → 1941-01-31T14:45:33Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:36–19:27 on the 30th, 17:37–19:28 on the 31st.

    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 30th and 110 of 110 on the 31st.

    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 5262 s

  5. 05

    Ruling

    Tila Caturthī, Baoding, 1941: Friday 31 January.

    confidence: determinate

Say it like this

In Baoding, Tila Caturthī 1941 falls on Friday 31 January. Caturthī runs from 20:55 on Thu 30 Jan to 22:46 on Fri 31 Jan and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1941/tila-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 31 Jan
Ahargaṇa, classicalDisc centre, no refractionFri 31 Jan
compat-drikpanchangComparison profileFri 31 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 30thCoveredSunset 31stCoveredRuled
Los Angeles04:55 → 06:4617:21108 min17:220 min30 Jan
Chicago06:55 → 08:4617:03112 min17:040 min30 Jan
Jersey City07:55 → 09:4617:11112 min17:120 min30 Jan
Port of Spain08:55 → 10:4618:0999 min18:100 min30 Jan
London13:55 → 15:4617:45119 min17:470 min30 Jan
Durban14:55 → 16:4618:5584 min18:550 min30 Jan
Dubai16:55 → 18:4618:02104 min18:0243 min30 Jan
Delhi18:25 → 20:1617:5879 min17:59105 min31 Jan
Kolkata18:25 → 20:1617:2342 min17:24103 min31 Jan
Singapore20:15 → 22:0618:401 min18:4096 min31 Jan
Sydney22:55 → 00:4619:020 min19:0182 min31 Jan
Suva00:55 → 02:4618:470 min18:4789 min31 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