Ruling · Ratha Saptamī · 2053

Monday 27 January

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 173 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 Sunday 26 January

Saptamī is absent from aruṇodaya. Not taken.

05:38 aruṇodaya beginssunrise 07:29
05:1405:3806:0206:2606:5007:1407:3808:02

0 of 112 minutes covered

Dawn of Monday 27 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

Saptamī presentAruṇodaya, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Saptamī runs from 11:18 on Sun 26 Jan to 10:22 on Mon 27 Jan.

    2053-01-26T03:18:27Z → 2053-01-27T02:22:03Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 05:38–07:29 on the 26th, 05:37–07:29 on the 27th.

    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 112 minutes on the 26th and 112 of 112 on the 27th.

    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 10401 s

  5. 05

    Ruling

    Ratha Saptamī, Baoding, 2053: Monday 27 January.

    confidence: determinate

Say it like this

In Baoding, Ratha Saptamī 2053 falls on Monday 27 January. Saptamī runs from 11:18 on Sun 26 Jan to 10:22 on Mon 27 Jan and covers all of aruṇodaya that dawn.

ahargana.org/baoding/festivals/2053/ratha-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 27 Jan
Ahargaṇa, classicalDisc centre, no refractionMon 27 Jan
compat-drikpanchangComparison profileMon 27 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 26thCoveredAruṇodaya 27thCoveredRuled
Los Angeles19:18 → 18:2205:05109 min05:040 min26 Jan
Chicago21:18 → 20:2205:15113 min05:140 min26 Jan
Jersey City22:18 → 21:2205:19113 min05:180 min26 Jan
Port of Spain23:18 → 22:2204:5199 min04:510 min26 Jan
London03:18 → 02:2205:46121 min05:450 min26 Jan
Durban05:18 → 04:2203:572 min03:5824 min27 Jan
Dubai07:18 → 06:2205:190 min05:1963 min27 Jan
Delhi08:48 → 07:5205:260 min05:26106 min27 Jan
Kolkata08:48 → 07:5204:340 min04:34104 min27 Jan
Singapore11:18 → 10:2205:400 min05:4096 min27 Jan
Sydney14:18 → 13:2204:500 min04:5181 min27 Jan
Suva15:18 → 14:2204:220 min04:2288 min27 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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