Ruling · Tila Caturthī · 1937

Sunday 14 February

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 483 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 Sunday 14 February

Taken. The only evening Caturthī reaches.

17:53 sunsetpradoṣa ends 19:40
17:2917:5318:1718:4119:0519:2919:53

106 of 106 minutes covered

Evening of Monday 15 February

Caturthī is absent from pradoṣa. Not taken.

17:55 sunsetpradoṣa ends 19:41
17:3117:5518:1918:4319:0719:3119:55

0 of 106 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 09:50 on Sun 14 Feb to 07:31 on Mon 15 Feb.

    1937-02-14T01:50:13Z → 1937-02-14T23:31:10Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:53–19:40 on the 14th, 17:55–19:41 on the 15th.

    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 14th and 0 of 106 on the 15th.

    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 28996 s

  5. 05

    Ruling

    Tila Caturthī, Baoding, 1937: Sunday 14 February.

    confidence: determinate

Say it like this

In Baoding, Tila Caturthī 1937 falls on Sunday 14 February. Caturthī runs from 09:50 on Sun 14 Feb to 07:31 on Mon 15 Feb and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1937/tila-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 14 Feb
Ahargaṇa, classicalDisc centre, no refractionSun 14 Feb
compat-drikpanchangComparison profileSun 14 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 14thCoveredSunset 15thCoveredRuled
Los Angeles17:50 → 15:3117:360 min17:370 min13 Feb
Chicago19:50 → 17:3117:229 min17:230 min14 Feb
Jersey City20:50 → 18:3117:2962 min17:310 min14 Feb
Port of Spain21:50 → 19:3118:1477 min18:140 min14 Feb
London01:50 → 23:3117:13112 min17:150 min14 Feb
Durban03:50 → 01:3118:4487 min18:440 min14 Feb
Dubai05:50 → 03:3118:12102 min18:120 min14 Feb
Delhi07:20 → 05:0118:10103 min18:110 min14 Feb
Kolkata07:20 → 05:0117:32101 min17:330 min14 Feb
Singapore09:10 → 06:5118:4195 min18:410 min14 Feb
Sydney11:50 → 09:3118:4985 min18:480 min14 Feb
Suva13:50 → 11:3118:4290 min18:410 min14 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

About Ahargaṇa