Ruling · Ratha Saptamī · 1986

Sunday 16 February

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 291 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 15 February

Saptamī is absent from aruṇodaya. Not taken.

05:24 aruṇodaya beginssunrise 07:11
05:0005:2405:4806:1206:3607:0007:24

0 of 106 minutes covered

Dawn of Sunday 16 February

Taken. The only dawn Saptamī reaches.

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

106 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 12:01 on Sat 15 Feb to 14:35 on Sun 16 Feb.

    1986-02-15T04:01:21Z → 1986-02-16T06:34:43Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 05:24–07:11 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 0 of 106 minutes on the 15th and 106 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 17445 s

  5. 05

    Ruling

    Ratha Saptamī, Baoding, 1986: Sunday 16 February.

    confidence: determinate

Say it like this

In Baoding, Ratha Saptamī 1986 falls on Sunday 16 February. Saptamī runs from 12:01 on Sat 15 Feb to 14:35 on Sun 16 Feb and covers all of aruṇodaya that dawn.

ahargana.org/baoding/festivals/1986/ratha-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 16 Feb
Ahargaṇa, classicalDisc centre, no refractionSun 16 Feb
compat-drikpanchangComparison profileSun 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 Angeles20:01 → 22:3504:54104 min04:530 min15 Feb
Chicago22:01 → 00:3505:00107 min04:590 min15 Feb
Jersey City23:01 → 01:3505:04107 min05:030 min15 Feb
Port of Spain00:01 → 02:3504:4998 min04:490 min15 Feb
London04:01 → 06:3505:23112 min05:2273 min15 Feb
Durban06:01 → 08:3504:090 min04:1087 min16 Feb
Dubai08:01 → 10:3505:120 min05:12101 min16 Feb
Delhi09:31 → 12:0505:170 min05:17102 min16 Feb
Kolkata09:31 → 12:0504:280 min04:28101 min16 Feb
Singapore12:01 → 14:3505:410 min05:4195 min16 Feb
Sydney15:01 → 17:3505:050 min05:0586 min16 Feb
Suva16:01 → 18:3504:290 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

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