Ruling · Ratha Saptamī · 2006

Saturday 4 February

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 90 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 Saturday 4 February

Taken. The only dawn Saptamī reaches.

05:33 aruṇodaya beginssunrise 07:22
05:0905:3305:5706:2106:4507:0907:33

110 of 110 minutes covered

Dawn of Sunday 5 February

Saptamī is absent from aruṇodaya. Not taken.

05:32 aruṇodaya beginssunrise 07:21
05:0805:3205:5606:2006:4407:0807:32

0 of 109 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 04:03 on Sat 4 Feb to 02:50 on Sun 5 Feb.

    2006-02-03T20:03:02Z → 2006-02-04T18:50:02Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 05:33–07:22 on the 4th, 05:32–07:21 on the 5th.

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

  3. 03

    Rule

    Saptamī must be present during aruṇodaya. It covers 110 of 110 minutes on the 4th and 0 of 109 on the 5th.

    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 5391 s

  5. 05

    Ruling

    Ratha Saptamī, Baoding, 2006: Saturday 4 February.

    confidence: determinate

Say it like this

In Baoding, Ratha Saptamī 2006 falls on Saturday 4 February. Saptamī runs from 04:03 on Sat 4 Feb to 02:50 on Sun 5 Feb and covers all of aruṇodaya that dawn.

ahargana.org/baoding/festivals/2006/ratha-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 4 Feb
Ahargaṇa, classicalDisc centre, no refractionSat 4 Feb
compat-drikpanchangComparison profileSat 4 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 3rdCoveredAruṇodaya 4thCoveredRuled
Los Angeles12:03 → 10:5005:020 min05:01107 min4 Feb
Chicago14:03 → 12:5005:100 min05:09111 min4 Feb
Jersey City15:03 → 13:5005:140 min05:13110 min4 Feb
Port of Spain16:03 → 14:5004:510 min04:5198 min4 Feb
London20:03 → 18:5005:380 min05:37118 min4 Feb
Durban22:03 → 20:5004:020 min04:0385 min4 Feb
Dubai00:03 → 22:5005:170 min05:17103 min4 Feb
Delhi01:33 → 00:2005:240 min05:23105 min4 Feb
Kolkata01:33 → 00:2004:330 min04:32103 min4 Feb
Singapore04:03 → 02:5005:410 min05:4196 min4 Feb
Sydney07:03 → 05:5004:560 min04:570 min5 Feb
Suva08:03 → 06:5004:250 min04:250 min5 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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