Ruling · Tila Caturthī · 2097

Friday 15 February

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 196 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 Friday 15 February

Taken. The only evening Caturthī reaches.

17:56 sunsetpradoṣa ends 19:42
17:3217:5618:2018:4419:0819:3219:56

106 of 106 minutes covered

Evening of Saturday 16 February

Caturthī is absent from pradoṣa. Not taken.

17:57 sunsetpradoṣa ends 19:42
17:3317:5718:2118:4519:0919:3319:57

0 of 105 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 14:40 on Fri 15 Feb to 13:37 on Sat 16 Feb.

    2097-02-15T06:39:46Z → 2097-02-16T05:37:02Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:56–19:42 on the 15th, 17:57–19:42 on the 16th.

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

  3. 03

    Rule

    Caturthī must be present during pradoṣa. It covers 106 of 106 minutes on the 15th and 0 of 105 on the 16th.

    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 11772 s

  5. 05

    Ruling

    Tila Caturthī, Baoding, 2097: Friday 15 February.

    confidence: determinate

Say it like this

In Baoding, Tila Caturthī 2097 falls on Friday 15 February. Caturthī runs from 14:40 on Fri 15 Feb to 13:37 on Sat 16 Feb and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/2097/tila-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 15 Feb
Ahargaṇa, classicalDisc centre, no refractionFri 15 Feb
compat-drikpanchangComparison profileFri 15 Feb
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 15thCoveredSunset 16thCoveredRuled
Los Angeles22:40 → 21:3717:38104 min17:390 min15 Feb
Chicago00:40 → 23:3717:25107 min17:260 min15 Feb
Jersey City01:40 → 00:3717:32106 min17:330 min15 Feb
Port of Spain02:40 → 01:3718:1498 min18:140 min15 Feb
London06:40 → 05:3717:17111 min17:190 min15 Feb
Durban08:40 → 07:3718:4287 min18:420 min15 Feb
Dubai10:40 → 09:3718:13101 min18:140 min15 Feb
Delhi12:10 → 11:0718:12102 min18:120 min15 Feb
Kolkata12:10 → 11:0717:33101 min17:340 min15 Feb
Singapore14:40 → 13:3719:2195 min19:210 min15 Feb
Sydney17:40 → 16:3719:4786 min19:460 min15 Feb
Suva18:40 → 17:3718:4091 min18:400 min15 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

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