Ruling · Ratha Saptamī · 1941

Monday 3 February

Boundaryin Baoding, under the Rashtriya Panchang method. Both dawns qualify and the rule does not say which to take. Say “contested”.

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 Monday 3 February

Taken. Both dawns qualify; the rule is silent, and this one is covered longer.

05:34 aruṇodaya beginssunrise 07:24
05:1005:3405:5806:2206:4607:1007:34

110 of 110 minutes covered

Dawn of Tuesday 4 February

Qualifies with 52 of 110 minutes. Not taken.

05:33 aruṇodaya beginssunrise 07:23
Saptamī ends 06:25:20
05:0905:3305:5706:2106:4507:0907:33

52 of 110 minutes covered, the first 52

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

How it was decided

  1. 01

    Aṅga

    Saptamī runs from 03:44 on Mon 3 Feb to 06:25 on Tue 4 Feb.

    1941-02-02T19:43:56Z → 1941-02-03T22:25:21Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 05:34–07:24 on the 3rd, 05:33–07:23 on the 4th.

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

  3. 03

    Rule

    Saptamī must be present during aruṇodaya. It covers 110 of 110 minutes on the 3rd and 52 of 110 on the 4th.

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

  4. 04

    Tie-break

    Both dawns qualify and the rule marks neither. The one covered longer is ruled, as a boundary.

    priority: unstated → greater-coverage · margin 3130 s

  5. 05

    Ruling

    Ratha Saptamī, Baoding, 1941: Monday 3 February.

    confidence: boundary (tie-break-unstated)

Say it like this

In Baoding, Ratha Saptamī 1941 falls on Monday 3 February. Saptamī runs from 03:44 on Mon 3 Feb to 06:25 on Tue 4 Feb and covers all of aruṇodaya that dawn. It also reaches the next dawn for 52 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.

ahargana.org/baoding/festivals/1941/ratha-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 3 Feb
Ahargaṇa, classicalDisc centre, no refractionMon 3 Feb
compat-drikpanchangComparison profileMon 3 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 2ndCoveredAruṇodaya 3rdCoveredRuled
Los Angeles11:44 → 14:2505:020 min05:02107 min3 Feb
Chicago13:44 → 16:2505:110 min05:10111 min3 Feb
Jersey City14:44 → 17:2505:150 min05:14111 min3 Feb
Port of Spain15:44 → 18:2504:510 min04:5199 min3 Feb
London20:44 → 23:2506:400 min06:39118 min3 Feb
Durban21:44 → 00:2504:010 min04:0284 min3 Feb
Dubai23:44 → 02:2505:180 min05:18104 min3 Feb
Delhi01:14 → 03:5505:240 min05:24105 min3 Feb
Kolkata01:14 → 03:5504:330 min04:33103 min3 Feb
Singapore03:04 → 05:4505:010 min05:0196 min3 Feb
Sydney05:44 → 08:2503:550 min03:560 min4 Feb
Suva07:44 → 10:2504:250 min04:250 min4 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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