Ruling · Ratha Saptamī · 1999

Sunday 24 January

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 525 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 23 January

Saptamī is absent from aruṇodaya. Not taken.

05:39 aruṇodaya beginssunrise 07:32
05:1505:3906:0306:2706:5107:1507:3908:03

0 of 113 minutes covered

Dawn of Sunday 24 January

Taken. The only dawn Saptamī reaches.

05:39 aruṇodaya beginssunrise 07:31
05:1505:3906:0306:2706:5107:1507:3908:03

112 of 112 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 18:11 on Sat 23 Jan to 16:17 on Sun 24 Jan.

    1999-01-23T10:11:27Z → 1999-01-24T08:16:42Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 05:39–07:32 on the 23rd, 05:39–07:31 on the 24th.

    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 113 minutes on the 23rd and 112 of 112 on the 24th.

    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 31516 s

  5. 05

    Ruling

    Ratha Saptamī, Baoding, 1999: Sunday 24 January.

    confidence: determinate

Say it like this

In Baoding, Ratha Saptamī 1999 falls on Sunday 24 January. Saptamī runs from 18:11 on Sat 23 Jan to 16:17 on Sun 24 Jan and covers all of aruṇodaya that dawn.

ahargana.org/baoding/festivals/1999/ratha-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 24 Jan
Ahargaṇa, classicalDisc centre, no refractionSun 24 Jan
compat-drikpanchangComparison profileSun 24 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 23rdCoveredAruṇodaya 24thCoveredRuled
Los Angeles02:11 → 00:1705:06110 min05:060 min23 Jan
Chicago04:11 → 02:1705:17115 min05:160 min23 Jan
Jersey City05:11 → 03:1705:21114 min05:200 min23 Jan
Port of Spain06:11 → 04:1704:5118 min04:510 min23 Jan
London10:11 → 08:1705:490 min05:49122 min24 Jan
Durban12:11 → 10:1703:540 min03:5583 min24 Jan
Dubai14:11 → 12:1705:200 min05:20105 min24 Jan
Delhi15:41 → 13:4705:270 min05:27107 min24 Jan
Kolkata15:41 → 13:4704:340 min04:34104 min24 Jan
Singapore18:11 → 16:1705:390 min05:3996 min24 Jan
Sydney21:11 → 19:1704:470 min04:4880 min24 Jan
Suva23:11 → 21:1705:200 min05:2088 min24 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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