Ruling · Ratha Saptamī · 1919

Friday 7 February

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 510 minutes.

Decide it for

38°52′ N 115°28′ E · Asia/Shanghai · GeoNames 1816971

The two dawns

One ghaṭī is 24 minutes. Aruṇodaya is 2 muhūrtas before sunrise.

Dawn of Thursday 6 February

Saptamī is absent from aruṇodaya. Not taken.

05:32 aruṇodaya beginssunrise 07:22
05:0805:3205:5606:2006:4407:0807:32

0 of 109 minutes covered

Dawn of Friday 7 February

Taken. The only dawn Saptamī reaches.

05:32 aruṇodaya beginssunrise 07:21
05:0805:3205:5606:2006:4407:0807:32

109 of 109 minutes covered

Saptamī presentAruṇodaya, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Saptamī runs from 17:58 on Thu 6 Feb to 15:51 on Fri 7 Feb.

    1919-02-06T09:57:50Z → 1919-02-07T07:50:57Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 05:32–07:22 on the 6th, 05:32–07:21 on the 7th.

    arunodaya: prev-night-muhurta-14-15 · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Saptamī must be present during aruṇodaya. It covers 0 of 109 minutes on the 6th and 109 of 109 on the 7th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105

  4. 04

    Tie-break

    Only one dawn qualifies. No tie-break is needed.

    priority: unstated → only-day · margin 30626 s

  5. 05

    Ruling

    Ratha Saptamī, Baoding, 1919: Friday 7 February.

    confidence: determinate

Say it like this

In Baoding, Ratha Saptamī 1919 falls on Friday 7 February. Saptamī runs from 17:58 on Thu 6 Feb to 15:51 on Fri 7 Feb and covers all of aruṇodaya that dawn.

ahargana.org/baoding/festivals/1919/ratha-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 7 Feb
Ahargaṇa, classicalDisc centre, no refractionFri 7 Feb
compat-drikpanchangComparison profileFri 7 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/ratha-saptami · ruleset 2026.3-draft

Month
Māgha, amānta
Pakṣa · aṅga
Śukla · Saptamī
Kāla
Aruṇodaya
Priority
Unstated
Tie-break
Longer coverage, as a boundary
Reference
CRC 1955, p. 105

“S 7 Ratha saptami (covering 4 ghatikas before sunrise), Acala saptami, Vidhana saptami, Arogya saptami [purvaviddha].” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceSaptamīAruṇodaya 6thCoveredAruṇodaya 7thCoveredRuled
Los Angeles01:58 → 23:5105:01107 min05:000 min6 Feb
Chicago03:58 → 01:5105:09111 min05:080 min6 Feb
Jersey City04:58 → 02:5105:13110 min05:120 min6 Feb
Port of Spain05:58 → 03:5104:5131 min04:510 min6 Feb
London09:58 → 07:5105:360 min05:35117 min7 Feb
Durban11:58 → 09:5104:040 min04:0485 min7 Feb
Dubai13:39 → 11:3204:580 min04:57103 min7 Feb
Delhi15:28 → 13:2105:230 min05:22104 min7 Feb
Kolkata15:28 → 13:2104:320 min04:32102 min7 Feb
Singapore16:58 → 14:5104:410 min04:4196 min7 Feb
Sydney19:58 → 17:5103:580 min03:5883 min7 Feb
Suva21:58 → 19:5104:260 min04:2689 min7 Feb
Profile · tradition
pac-rp@2026.1 · smarta
Rule
ratha-saptami@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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