Ruling · Ratha Saptamī · 2005

Tuesday 15 February

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 587 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 15 February

Taken. The only dawn Saptamī reaches.

05:24 aruṇodaya beginssunrise 07:10
05:0005:2405:4806:1206:3607:0007:24

106 of 106 minutes covered

Dawn of Wednesday 16 February

Saptamī is absent from aruṇodaya. Not taken.

05:23 aruṇodaya beginssunrise 07:09
04:5905:2305:4706:1106:3506:5907:23

0 of 106 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 18:50 on Mon 14 Feb to 19:36 on Tue 15 Feb.

    2005-02-14T10:49:59Z → 2005-02-15T11:36:07Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 05:24–07:10 on the 15th, 05:23–07:09 on the 16th.

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

  3. 03

    Rule

    Saptamī must be present during aruṇodaya. It covers 106 of 106 minutes on the 15th and 0 of 106 on the 16th.

    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 35215 s

  5. 05

    Ruling

    Ratha Saptamī, Baoding, 2005: Tuesday 15 February.

    confidence: determinate

Say it like this

In Baoding, Ratha Saptamī 2005 falls on Tuesday 15 February. Saptamī runs from 18:50 on Mon 14 Feb to 19:36 on Tue 15 Feb and covers all of aruṇodaya that dawn.

ahargana.org/baoding/festivals/2005/ratha-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 15 Feb
Ahargaṇa, classicalDisc centre, no refractionTue 15 Feb
compat-drikpanchangComparison profileTue 15 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 14thCoveredAruṇodaya 15thCoveredRuled
Los Angeles02:50 → 03:3604:54104 min04:530 min14 Feb
Chicago04:50 → 05:3605:00108 min04:5937 min14 Feb
Jersey City05:50 → 06:3605:0562 min05:0493 min15 Feb
Port of Spain06:50 → 07:3604:490 min04:4998 min15 Feb
London10:50 → 11:3605:240 min05:23112 min15 Feb
Durban12:50 → 13:3604:090 min04:1087 min15 Feb
Dubai14:50 → 15:3605:130 min05:12102 min15 Feb
Delhi16:20 → 17:0605:180 min05:17103 min15 Feb
Kolkata16:20 → 17:0604:280 min04:28101 min15 Feb
Singapore18:50 → 19:3605:410 min05:4195 min15 Feb
Sydney21:50 → 22:3605:040 min05:0586 min15 Feb
Suva22:50 → 23:3604:290 min04:3091 min15 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

About Ahargaṇa