Ruling · Ratha Saptamī · 2075

Wednesday 23 January

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 609 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 Tuesday 22 January

Saptamī is absent from aruṇodaya. Not taken.

05:40 aruṇodaya beginssunrise 07:32
05:1605:4006:0406:2806:5207:1607:4008:04

0 of 113 minutes covered

Dawn of Wednesday 23 January

Taken. The only dawn Saptamī reaches.

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

113 of 113 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 17:41 on Tue 22 Jan to 18:45 on Wed 23 Jan.

    2075-01-22T09:41:08Z → 2075-01-23T10:45:14Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 05:40–07:32 on the 22nd, 05:39–07:32 on the 23rd.

    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 22nd and 113 of 113 on the 23rd.

    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 36528 s

  5. 05

    Ruling

    Ratha Saptamī, Baoding, 2075: Wednesday 23 January.

    confidence: determinate

Say it like this

In Baoding, Ratha Saptamī 2075 falls on Wednesday 23 January. Saptamī runs from 17:41 on Tue 22 Jan to 18:45 on Wed 23 Jan and covers all of aruṇodaya that dawn.

ahargana.org/baoding/festivals/2075/ratha-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 23 Jan
Ahargaṇa, classicalDisc centre, no refractionWed 23 Jan
compat-drikpanchangComparison profileWed 23 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 22ndCoveredAruṇodaya 23rdCoveredRuled
Los Angeles01:41 → 02:4505:06110 min05:060 min22 Jan
Chicago03:41 → 04:4505:17115 min05:170 min22 Jan
Jersey City04:41 → 05:4505:21114 min05:2025 min22 Jan
Port of Spain05:41 → 06:4504:5049 min04:5199 min23 Jan
London09:41 → 10:4505:500 min05:49123 min23 Jan
Durban11:41 → 12:4503:540 min03:5582 min23 Jan
Dubai13:41 → 14:4505:200 min05:20105 min23 Jan
Delhi15:11 → 16:1505:270 min05:27107 min23 Jan
Kolkata15:11 → 16:1504:340 min04:34104 min23 Jan
Singapore17:41 → 18:4505:390 min05:3996 min23 Jan
Sydney20:41 → 21:4504:470 min04:4880 min23 Jan
Suva21:41 → 22:4504:190 min04:2088 min23 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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