Ruling · Ratha Saptamī · 1929

Saturday 16 February

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 394 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 16 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 Sunday 17 February

Saptamī is absent from aruṇodaya. Not taken.

05:23 aruṇodaya beginssunrise 07:08
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 22:49 on Fri 15 Feb to 21:15 on Sat 16 Feb.

    1929-02-15T14:49:24Z → 1929-02-16T13:15:23Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 05:24–07:10 on the 16th, 05:23–07:08 on the 17th.

    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 16th and 0 of 106 on the 17th.

    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 23657 s

  5. 05

    Ruling

    Ratha Saptamī, Baoding, 1929: Saturday 16 February.

    confidence: determinate

Say it like this

In Baoding, Ratha Saptamī 1929 falls on Saturday 16 February. Saptamī runs from 22:49 on Fri 15 Feb to 21:15 on Sat 16 Feb and covers all of aruṇodaya that dawn.

ahargana.org/baoding/festivals/1929/ratha-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 16 Feb
Ahargaṇa, classicalDisc centre, no refractionSat 16 Feb
compat-drikpanchangComparison profileSat 16 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 15thCoveredAruṇodaya 16thCoveredRuled
Los Angeles06:49 → 05:1504:540 min04:5322 min16 Feb
Chicago08:49 → 07:1505:000 min04:59107 min16 Feb
Jersey City09:49 → 08:1505:040 min05:03107 min16 Feb
Port of Spain10:49 → 09:1504:490 min04:4998 min16 Feb
London14:49 → 13:1505:230 min05:22112 min16 Feb
Durban16:49 → 15:1504:090 min04:1087 min16 Feb
Dubai18:49 → 17:1505:120 min05:12101 min16 Feb
Delhi20:19 → 18:4505:180 min05:17103 min16 Feb
Kolkata20:19 → 18:4504:280 min04:28101 min16 Feb
Singapore21:49 → 20:1504:410 min04:4195 min16 Feb
Sydney00:49 → 23:1504:050 min04:0586 min16 Feb
Suva02:49 → 01:1504:290 min04:3091 min16 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