Ruling · Ratha Saptamī · 1915

Friday 22 January

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 321 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 Friday 22 January

Taken. The only dawn Saptamī reaches.

05:40 aruṇodaya beginssunrise 07:33
05:1605:4006:0406:2806:5207:1607:4008:04

113 of 113 minutes covered

Dawn of Saturday 23 January

Saptamī is absent from aruṇodaya. Not taken.

05:40 aruṇodaya beginssunrise 07:33
05:1605:4006:0406:2806:5207:1607:4008:04

0 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 22:09 on Thu 21 Jan to 00:19 on Sat 23 Jan.

    1915-01-21T14:09:29Z → 1915-01-22T16:19:12Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 05:40–07:33 on the 22nd, 05:40–07:33 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 113 of 113 minutes on the 22nd and 0 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 19237 s

  5. 05

    Ruling

    Ratha Saptamī, Baoding, 1915: Friday 22 January.

    confidence: determinate

Say it like this

In Baoding, Ratha Saptamī 1915 falls on Friday 22 January. Saptamī runs from 22:09 on Thu 21 Jan to 00:19 on Sat 23 Jan and covers all of aruṇodaya that dawn.

ahargana.org/baoding/festivals/1915/ratha-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 22 Jan
Ahargaṇa, classicalDisc centre, no refractionFri 22 Jan
compat-drikpanchangComparison profileFri 22 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 21stCoveredAruṇodaya 22ndCoveredRuled
Los Angeles06:09 → 08:1905:0748 min05:07110 min22 Jan
Chicago08:09 → 10:1905:180 min05:18115 min22 Jan
Jersey City09:09 → 11:1905:220 min05:22114 min22 Jan
Port of Spain10:09 → 12:1904:500 min04:5199 min22 Jan
London14:09 → 16:1905:520 min05:51123 min22 Jan
Durban16:09 → 18:1903:520 min03:5382 min22 Jan
Dubai17:50 → 20:0005:010 min05:01105 min22 Jan
Delhi19:39 → 21:4905:270 min05:27107 min22 Jan
Kolkata19:39 → 21:4904:350 min04:35104 min22 Jan
Singapore21:09 → 23:1904:390 min04:3996 min22 Jan
Sydney00:09 → 02:1903:450 min03:4680 min22 Jan
Suva02:04 → 04:1404:130 min04:1488 min22 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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