Ruling · Ratha Saptamī · 1910

Wednesday 16 February

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 496 minutes.

Decide it for

BaodingDelhiKolkataSingaporeSydneyJersey City

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 15 February

Saptamī is absent from aruṇodaya. Not taken.

05:25 aruṇodaya beginssunrise 07:11
05:0105:2505:4906:1306:3707:0107:25

0 of 106 minutes covered

Dawn of Wednesday 16 February

Taken. The only dawn Saptamī reaches.

05:24 aruṇodaya beginssunrise 07:10
05:0005:2405:4806:1206:3607:0007:24

106 of 106 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 17:30 on Tue 15 Feb to 15:26 on Wed 16 Feb.

    1910-02-15T09:29:31Z → 1910-02-16T07:26:13Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 05:25–07:11 on the 15th, 05:24–07:10 on the 16th.

    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 106 minutes on the 15th and 106 of 106 on the 16th.

    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 29759 s

  5. 05

    Ruling

    Ratha Saptamī, Baoding, 1910: Wednesday 16 February.

    confidence: determinate

Say it like this

In Baoding, Ratha Saptamī 1910 falls on Wednesday 16 February. Saptamī runs from 17:30 on Tue 15 Feb to 15:26 on Wed 16 Feb and covers all of aruṇodaya that dawn.

ahargana.org/baoding/festivals/1910/ratha-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 16 Feb
Ahargaṇa, classicalDisc centre, no refractionWed 16 Feb
compat-drikpanchangComparison profileWed 16 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 15thCoveredAruṇodaya 16thCoveredRuled
Los Angeles01:30 → 23:2604:54104 min04:540 min15 Feb
Chicago03:30 → 01:2605:00108 min04:590 min15 Feb
Jersey City04:30 → 02:2605:05107 min05:040 min15 Feb
Port of Spain05:30 → 03:2604:4958 min04:490 min15 Feb
London09:30 → 07:2605:240 min05:23112 min16 Feb
Durban11:30 → 09:2604:090 min04:1087 min16 Feb
Dubai13:11 → 11:0704:540 min04:53102 min16 Feb
Delhi15:00 → 12:5605:180 min05:17103 min16 Feb
Kolkata15:00 → 12:5604:290 min04:28101 min16 Feb
Singapore16:30 → 14:2604:410 min04:4195 min16 Feb
Sydney19:30 → 17:2604:040 min04:0586 min16 Feb
Suva21:25 → 19:2104:240 min04:2591 min16 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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