Ruling · Ratha Saptamī · 1968

Monday 5 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 5 February

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

05:33 aruṇodaya beginssunrise 07:22
05:0905:3305:5706:2106:4507:0907:33

109 of 109 minutes covered

Dawn of Tuesday 6 February

Qualifies with 87 of 109 minutes. Not taken.

05:32 aruṇodaya beginssunrise 07:21
Saptamī ends 06:59:15
05:0805:3205:5606:2006:4407:0807:32

87 of 109 minutes covered, the first 87

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

How it was decided

  1. 01

    Aṅga

    Saptamī runs from 04:23 on Mon 5 Feb to 06:59 on Tue 6 Feb.

    1968-02-04T20:22:42Z → 1968-02-05T22:59:15Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 05:33–07:22 on the 5th, 05:32–07:21 on the 6th.

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

  3. 03

    Rule

    Saptamī must be present during aruṇodaya. It covers 109 of 109 minutes on the 5th and 87 of 109 on the 6th.

    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 1323 s

  5. 05

    Ruling

    Ratha Saptamī, Baoding, 1968: Monday 5 February.

    confidence: boundary (tie-break-unstated)

Say it like this

In Baoding, Ratha Saptamī 1968 falls on Monday 5 February. Saptamī runs from 04:23 on Mon 5 Feb to 06:59 on Tue 6 Feb and covers all of aruṇodaya that dawn. It also reaches the next dawn for 87 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/1968/ratha-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 5 Feb
Ahargaṇa, classicalDisc centre, no refractionMon 5 Feb
compat-drikpanchangComparison profileMon 5 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 4thCoveredAruṇodaya 5thCoveredRuled
Los Angeles12:23 → 14:5905:020 min05:01107 min5 Feb
Chicago14:23 → 16:5905:100 min05:09111 min5 Feb
Jersey City15:23 → 17:5905:140 min05:13110 min5 Feb
Port of Spain16:23 → 18:5904:510 min04:5198 min5 Feb
London20:23 → 22:5905:380 min05:37117 min5 Feb
Durban22:23 → 00:5904:020 min04:0385 min5 Feb
Dubai00:23 → 02:5905:170 min05:17103 min5 Feb
Delhi01:53 → 04:2905:240 min05:23105 min5 Feb
Kolkata01:53 → 04:2904:330 min04:32103 min5 Feb
Singapore03:53 → 06:2905:110 min05:1196 min5 Feb
Sydney06:23 → 08:5903:560 min03:570 min6 Feb
Suva08:23 → 10:5904:250 min04:260 min6 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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