Ruling · Ratha Saptamī · 2049

Tuesday 9 February

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 163 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 Monday 8 February

Saptamī is absent from aruṇodaya. Not taken.

05:29 aruṇodaya beginssunrise 07:18
05:0505:2905:5306:1706:4107:0507:29

0 of 108 minutes covered

Dawn of Tuesday 9 February

Taken. The only dawn Saptamī reaches.

05:29 aruṇodaya beginssunrise 07:17
05:0505:2905:5306:1706:4107:0507:29

108 of 108 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 10:01 on Mon 8 Feb to 10:54 on Tue 9 Feb.

    2049-02-08T02:01:08Z → 2049-02-09T02:53:57Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 05:29–07:18 on the 8th, 05:29–07:17 on the 9th.

    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 108 minutes on the 8th and 108 of 108 on the 9th.

    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 9806 s

  5. 05

    Ruling

    Ratha Saptamī, Baoding, 2049: Tuesday 9 February.

    confidence: determinate

Say it like this

In Baoding, Ratha Saptamī 2049 falls on Tuesday 9 February. Saptamī runs from 10:01 on Mon 8 Feb to 10:54 on Tue 9 Feb and covers all of aruṇodaya that dawn.

ahargana.org/baoding/festivals/2049/ratha-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 9 Feb
Ahargaṇa, classicalDisc centre, no refractionTue 9 Feb
compat-drikpanchangComparison profileTue 9 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 8thCoveredAruṇodaya 9thCoveredRuled
Los Angeles18:01 → 18:5404:58106 min04:580 min8 Feb
Chicago20:01 → 20:5405:05109 min05:050 min8 Feb
Jersey City21:01 → 21:5405:10109 min05:090 min8 Feb
Port of Spain22:01 → 22:5404:5098 min04:500 min8 Feb
London02:01 → 02:5405:31115 min05:300 min8 Feb
Durban04:01 → 04:5404:0686 min04:0648 min8 Feb
Dubai06:01 → 06:5405:1557 min05:1599 min9 Feb
Delhi07:31 → 08:2405:210 min05:20104 min9 Feb
Kolkata07:31 → 08:2404:310 min04:30102 min9 Feb
Singapore10:01 → 10:5405:410 min05:4196 min9 Feb
Sydney13:01 → 13:5405:000 min05:0184 min9 Feb
Suva14:01 → 14:5404:270 min04:2890 min9 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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