Ruling · Tila Caturthī · 2045

Sunday 22 January

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 49 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 21 January

Caturthī is absent from pradoṣa. Not taken.

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

0 of 113 minutes covered

Evening of Sunday 22 January

Taken. The only evening Caturthī reaches.

17:28 sunsetpradoṣa ends 19:20
17:0417:2817:5218:1618:4019:0419:2819:52

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 20:08 on Sat 21 Jan to 22:14 on Sun 22 Jan.

    2045-01-21T12:07:58Z → 2045-01-22T14:13:54Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:27–19:19 on the 21st, 17:28–19:20 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 2918 s

  5. 05

    Ruling

    Tila Caturthī, Baoding, 2045: Sunday 22 January.

    confidence: determinate

Say it like this

In Baoding, Tila Caturthī 2045 falls on Sunday 22 January. Caturthī runs from 20:08 on Sat 21 Jan to 22:14 on Sun 22 Jan and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/2045/tila-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 22 Jan
Ahargaṇa, classicalDisc centre, no refractionSun 22 Jan
compat-drikpanchangComparison profileSun 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 Angeles04:08 → 06:1417:13110 min17:140 min21 Jan
Chicago06:08 → 08:1416:52115 min16:530 min21 Jan
Jersey City07:08 → 09:1417:01114 min17:020 min21 Jan
Port of Spain08:08 → 10:1418:0699 min18:060 min21 Jan
London12:08 → 14:1416:31123 min16:330 min21 Jan
Durban14:08 → 16:1418:5982 min18:580 min21 Jan
Dubai16:08 → 18:1417:55105 min17:5618 min21 Jan
Delhi17:38 → 19:4417:51107 min17:52107 min21 Jan
Kolkata17:38 → 19:4417:1783 min17:18104 min22 Jan
Singapore20:08 → 22:1419:1745 min19:1896 min22 Jan
Sydney23:08 → 01:1420:070 min20:0680 min22 Jan
Suva00:08 → 02:1418:480 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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