Ruling · Tila Caturthī (Kunda Caturthī) · 2025

Saturday 1 February

Determinatein Ujjain, under the Rashtriya Panchang method. Clear of every threshold by 395 minutes.

Decide it for

23°11′ N 75°47′ E · Asia/Kolkata · GeoNames 1253914

The two evenings

One ghaṭī is 24 minutes. Pradoṣa is 2 muhūrtas after sunset.

Evening of Saturday 1 February

Taken. The only evening Caturthī reaches.

18:14 sunsetpradoṣa ends 19:57
17:5018:1418:3819:0219:2619:5020:14

103 of 103 minutes covered

Evening of Sunday 2 February

Caturthī is absent from pradoṣa. Not taken.

18:15 sunsetpradoṣa ends 19:58
17:5118:1518:3919:0319:2719:5120:15

0 of 103 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 11:39 on Sat 1 Feb to 09:15 on Sun 2 Feb.

    2025-02-01T06:08:49Z → 2025-02-02T03:44:58Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 18:14–19:57 on the 1st, 18:15–19:58 on the 2nd.

    pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Caturthī must be present during pradoṣa. It covers 103 of 103 minutes on the 1st and 0 of 103 on the 2nd.

    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 23716 s

  5. 05

    Ruling

    Tila Caturthī, Ujjain, 2025: Saturday 1 February.

    confidence: determinate

Say it like this

In Ujjain, Tila Caturthī 2025 falls on Saturday 1 February. Caturthī runs from 11:39 on Sat 1 Feb to 09:15 on Sun 2 Feb and covers all of pradoṣa that evening.

ahargana.org/ujjain/festivals/2025/tila-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 1 Feb
Ahargaṇa, classicalDisc centre, no refractionSat 1 Feb
compat-drikpanchangComparison profileSat 1 Feb
No institution has a recorded ruling for Ujjain.

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 1stCoveredSunset 2ndCoveredRuled
Los Angeles22:09 → 19:4517:24107 min17:250 min1 Feb
Chicago00:09 → 21:4517:06111 min17:070 min1 Feb
Jersey City01:09 → 22:4517:14111 min17:150 min1 Feb
Port of Spain02:09 → 23:4518:1099 min18:100 min1 Feb
London06:09 → 03:4516:50118 min16:520 min1 Feb
Durban08:09 → 05:4518:5384 min18:530 min1 Feb
Dubai10:09 → 07:4518:03104 min18:040 min1 Feb
Delhi11:39 → 09:1518:00105 min18:010 min1 Feb
Kolkata11:39 → 09:1517:25103 min17:250 min1 Feb
Singapore14:09 → 11:4519:2096 min19:200 min1 Feb
Sydney17:09 → 14:4520:0082 min19:590 min1 Feb
Suva18:09 → 15:4518:4689 min18:460 min1 Feb
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