Ruling · Tila Caturthī · 2064

Tuesday 22 January

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 435 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 Monday 21 January

Caturthī is absent from pradoṣa. Not taken.

17:26 sunsetpradoṣa ends 19:19
17:0217:2617:5018:1418:3819:0219:2619:50

0 of 113 minutes covered

Evening of Tuesday 22 January

Taken. The only evening Caturthī reaches.

17:27 sunsetpradoṣa ends 19:20
17:0317:2717:5118:1518:3919:0319:2719:51

113 of 113 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 02:34 on Tue 22 Jan to 05:13 on Wed 23 Jan.

    2064-01-21T18:33:55Z → 2064-01-22T21:12:52Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:26–19:19 on the 21st, 17:27–19:20 on the 22nd.

    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 113 minutes on the 21st and 113 of 113 on the 22nd.

    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 26105 s

  5. 05

    Ruling

    Tila Caturthī, Baoding, 2064: Tuesday 22 January.

    confidence: determinate

Say it like this

In Baoding, Tila Caturthī 2064 falls on Tuesday 22 January. Caturthī runs from 02:34 on Tue 22 Jan to 05:13 on Wed 23 Jan and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/2064/tila-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 22 Jan
Ahargaṇa, classicalDisc centre, no refractionTue 22 Jan
compat-drikpanchangComparison profileTue 22 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 21stCoveredSunset 22ndCoveredRuled
Los Angeles10:34 → 13:1317:12110 min17:130 min21 Jan
Chicago12:34 → 15:1316:52115 min16:530 min21 Jan
Jersey City13:34 → 16:1317:00114 min17:010 min21 Jan
Port of Spain14:34 → 17:1318:0599 min18:060 min21 Jan
London18:34 → 21:1316:300 min16:32123 min22 Jan
Durban20:34 → 23:1318:590 min18:5982 min22 Jan
Dubai22:34 → 01:1317:550 min17:56105 min22 Jan
Delhi00:04 → 02:4317:510 min17:51107 min22 Jan
Kolkata00:04 → 02:4317:170 min17:18104 min22 Jan
Singapore02:34 → 05:1319:170 min19:1896 min22 Jan
Sydney05:34 → 08:1320:070 min20:0680 min22 Jan
Suva06:34 → 09:1318:480 min18:4888 min22 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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