Ruling · Ratha Saptamī · 2004

Wednesday 28 January

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 280 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 28 January

Taken. The only dawn Saptamī reaches.

05:37 aruṇodaya beginssunrise 07:29
05:1305:3706:0106:2506:4907:1307:3708:01

112 of 112 minutes covered

Dawn of Thursday 29 January

Saptamī is absent from aruṇodaya. Not taken.

05:37 aruṇodaya beginssunrise 07:28
05:1305:3706:0106:2506:4907:1307:3708:01

0 of 111 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 23:13 on Tue 27 Jan to 00:57 on Thu 29 Jan.

    2004-01-27T15:12:43Z → 2004-01-28T16:57:03Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 05:37–07:29 on the 28th, 05:37–07:28 on the 29th.

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

  3. 03

    Rule

    Saptamī must be present during aruṇodaya. It covers 112 of 112 minutes on the 28th and 0 of 111 on the 29th.

    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 16784 s

  5. 05

    Ruling

    Ratha Saptamī, Baoding, 2004: Wednesday 28 January.

    confidence: determinate

Say it like this

In Baoding, Ratha Saptamī 2004 falls on Wednesday 28 January. Saptamī runs from 23:13 on Tue 27 Jan to 00:57 on Thu 29 Jan and covers all of aruṇodaya that dawn.

ahargana.org/baoding/festivals/2004/ratha-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 28 Jan
Ahargaṇa, classicalDisc centre, no refractionWed 28 Jan
compat-drikpanchangComparison profileWed 28 Jan
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 27thCoveredAruṇodaya 28thCoveredRuled
Los Angeles07:13 → 08:5705:050 min05:05109 min28 Jan
Chicago09:13 → 10:5705:150 min05:14113 min28 Jan
Jersey City10:13 → 11:5705:190 min05:18113 min28 Jan
Port of Spain11:13 → 12:5704:510 min04:5199 min28 Jan
London15:13 → 16:5705:460 min05:45121 min28 Jan
Durban17:13 → 18:5703:570 min03:5883 min28 Jan
Dubai19:13 → 20:5705:190 min05:19105 min28 Jan
Delhi20:43 → 22:2705:260 min05:26106 min28 Jan
Kolkata20:43 → 22:2704:340 min04:34104 min28 Jan
Singapore23:13 → 00:5705:400 min05:4096 min28 Jan
Sydney02:13 → 03:5704:500 min04:5181 min28 Jan
Suva03:13 → 04:5704:220 min04:2288 min28 Jan
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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