Ruling · Ratha Saptamī · 1949

Saturday 5 February

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 138 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 Saturday 5 February

Taken. The only dawn Saptamī reaches.

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

109 of 109 minutes covered

Dawn of Sunday 6 February

Saptamī is absent from aruṇodaya. Not taken.

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

0 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 01:05 on Sat 5 Feb to 03:14 on Sun 6 Feb.

    1949-02-04T17:04:57Z → 1949-02-05T19:14:07Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 05:32–07:22 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 0 of 109 on the 6th.

    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 8258 s

  5. 05

    Ruling

    Ratha Saptamī, Baoding, 1949: Saturday 5 February.

    confidence: determinate

Say it like this

In Baoding, Ratha Saptamī 1949 falls on Saturday 5 February. Saptamī runs from 01:05 on Sat 5 Feb to 03:14 on Sun 6 Feb and covers all of aruṇodaya that dawn.

ahargana.org/baoding/festivals/1949/ratha-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 5 Feb
Ahargaṇa, classicalDisc centre, no refractionSat 5 Feb
compat-drikpanchangComparison profileSat 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 Angeles09:05 → 11:1405:010 min05:01107 min5 Feb
Chicago11:05 → 13:1405:100 min05:09111 min5 Feb
Jersey City12:05 → 14:1405:140 min05:13110 min5 Feb
Port of Spain13:05 → 15:1404:510 min04:5198 min5 Feb
London17:05 → 19:1405:380 min05:36117 min5 Feb
Durban19:05 → 21:1404:030 min04:0385 min5 Feb
Dubai21:05 → 23:1405:170 min05:17103 min5 Feb
Delhi22:35 → 00:4405:230 min05:23105 min5 Feb
Kolkata22:35 → 00:4404:320 min04:32102 min5 Feb
Singapore00:35 → 02:4405:110 min05:1196 min5 Feb
Sydney03:05 → 05:1403:570 min03:5783 min5 Feb
Suva05:05 → 07:1404:250 min04:2650 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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