Ruling · Ratha Saptamī · 1960

Thursday 4 February

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 29 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 Wednesday 3 February

Saptamī is absent from aruṇodaya. Not taken.

05:34 aruṇodaya beginssunrise 07:24
Saptamī begins 07:52:58
05:1005:3405:5806:2206:4607:1007:3407:58

0 of 110 minutes covered

Dawn of Thursday 4 February

Taken. The only dawn Saptamī reaches.

05:34 aruṇodaya beginssunrise 07:23
05:1005:3405:5806:2206:4607:1007:3407:58

110 of 110 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 07:53 on Wed 3 Feb to 09:26 on Thu 4 Feb.

    1960-02-02T23:52:59Z → 1960-02-04T01:26:14Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 05:34–07:24 on the 3rd, 05:34–07:23 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 0 of 110 minutes on the 3rd and 110 of 110 on the 4th.

    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 1725 s

  5. 05

    Ruling

    Ratha Saptamī, Baoding, 1960: Thursday 4 February.

    confidence: determinate

Say it like this

In Baoding, Ratha Saptamī 1960 falls on Thursday 4 February. Saptamī runs from 07:53 on Wed 3 Feb to 09:26 on Thu 4 Feb and covers all of aruṇodaya that dawn.

ahargana.org/baoding/festivals/1960/ratha-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 4 Feb
Ahargaṇa, classicalDisc centre, no refractionThu 4 Feb
compat-drikpanchangComparison profileThu 4 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 4thCoveredRuled
Los Angeles15:53 → 17:2605:030 min05:020 min3 Feb
Chicago17:53 → 19:2605:120 min05:100 min3 Feb
Jersey City18:53 → 20:2605:150 min05:140 min3 Feb
Port of Spain19:53 → 21:2604:510 min04:510 min3 Feb
London23:53 → 01:2605:410 min05:380 min3 Feb
Durban01:53 → 03:2604:010 min04:020 min3 Feb
Dubai03:53 → 05:2605:180 min05:179 min3 Feb
Delhi05:23 → 06:5605:240 min05:2493 min3 Feb
Kolkata05:23 → 06:5604:330 min04:33103 min4 Feb
Singapore07:23 → 08:5605:110 min05:1196 min4 Feb
Sydney09:53 → 11:2603:550 min03:5683 min4 Feb
Suva11:53 → 13:2604:240 min04:2589 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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