Ruling · Ratha Saptamī · 2089

Thursday 17 February

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 41 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 Thursday 17 February

Taken. The only dawn Saptamī reaches.

05:22 aruṇodaya beginssunrise 07:07
04:5805:2205:4606:1006:3406:5807:22

105 of 105 minutes covered

Dawn of Friday 18 February

Saptamī is absent from aruṇodaya. Not taken.

05:21 aruṇodaya beginssunrise 07:06
04:5705:2105:4506:0906:3306:5707:21

0 of 105 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 04:41 on Thu 17 Feb to 03:53 on Fri 18 Feb.

    2089-02-16T20:40:49Z → 2089-02-17T19:53:30Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 05:22–07:07 on the 17th, 05:21–07:06 on the 18th.

    arunodaya: prev-night-muhurta-14-15 · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Saptamī must be present during aruṇodaya. It covers 105 of 105 minutes on the 17th and 0 of 105 on the 18th.

    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 2448 s

  5. 05

    Ruling

    Ratha Saptamī, Baoding, 2089: Thursday 17 February.

    confidence: determinate

Say it like this

In Baoding, Ratha Saptamī 2089 falls on Thursday 17 February. Saptamī runs from 04:41 on Thu 17 Feb to 03:53 on Fri 18 Feb and covers all of aruṇodaya that dawn.

ahargana.org/baoding/festivals/2089/ratha-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 17 Feb
Ahargaṇa, classicalDisc centre, no refractionThu 17 Feb
compat-drikpanchangComparison profileThu 17 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 16thCoveredAruṇodaya 17thCoveredRuled
Los Angeles12:41 → 11:5304:520 min04:51104 min17 Feb
Chicago14:41 → 13:5304:580 min04:57106 min17 Feb
Jersey City15:41 → 14:5305:020 min05:01106 min17 Feb
Port of Spain16:41 → 15:5304:490 min04:4898 min17 Feb
London20:41 → 19:5305:200 min05:19111 min17 Feb
Durban22:41 → 21:5304:110 min04:1188 min17 Feb
Dubai00:41 → 23:5305:110 min05:11101 min17 Feb
Delhi02:11 → 01:2305:160 min05:16102 min17 Feb
Kolkata02:11 → 01:2304:270 min04:27100 min17 Feb
Singapore04:41 → 03:5305:410 min05:4195 min17 Feb
Sydney07:41 → 06:5305:060 min05:070 min18 Feb
Suva08:41 → 07:5304:300 min04:300 min18 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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