Ruling · Ratha Saptamī · 2069

Tuesday 29 January

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 537 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 Tuesday 29 January

Taken. The only dawn Saptamī reaches.

05:36 aruṇodaya beginssunrise 07:27
05:1205:3606:0006:2406:4807:1207:3608:00

111 of 111 minutes covered

Dawn of Wednesday 30 January

Saptamī is absent from aruṇodaya. Not taken.

05:36 aruṇodaya beginssunrise 07:26
05:1205:3606:0006:2406:4807:1207:3608:00

0 of 111 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 20:39 on Mon 28 Jan to 18:35 on Tue 29 Jan.

    2069-01-28T12:39:09Z → 2069-01-29T10:35:18Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 05:36–07:27 on the 29th, 05:36–07:26 on the 30th.

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

  3. 03

    Rule

    Saptamī must be present during aruṇodaya. It covers 111 of 111 minutes on the 29th and 0 of 111 on the 30th.

    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 32218 s

  5. 05

    Ruling

    Ratha Saptamī, Baoding, 2069: Tuesday 29 January.

    confidence: determinate

Say it like this

In Baoding, Ratha Saptamī 2069 falls on Tuesday 29 January. Saptamī runs from 20:39 on Mon 28 Jan to 18:35 on Tue 29 Jan and covers all of aruṇodaya that dawn.

ahargana.org/baoding/festivals/2069/ratha-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 29 Jan
Ahargaṇa, classicalDisc centre, no refractionTue 29 Jan
compat-drikpanchangComparison profileTue 29 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 28thCoveredAruṇodaya 29thCoveredRuled
Los Angeles04:39 → 02:3505:04108 min05:040 min28 Jan
Chicago06:39 → 04:3505:1427 min05:130 min28 Jan
Jersey City07:39 → 05:3505:180 min05:1718 min29 Jan
Port of Spain08:39 → 06:3504:510 min04:5199 min29 Jan
London12:39 → 10:3505:440 min05:43120 min29 Jan
Durban14:39 → 12:3503:580 min03:5984 min29 Jan
Dubai16:39 → 14:3505:190 min05:19104 min29 Jan
Delhi18:09 → 16:0505:250 min05:25106 min29 Jan
Kolkata18:09 → 16:0504:340 min04:34103 min29 Jan
Singapore20:39 → 18:3505:400 min05:4196 min29 Jan
Sydney23:39 → 21:3504:520 min04:5382 min29 Jan
Suva00:39 → 22:3504:230 min04:2389 min29 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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