Ruling · Śiva Śayanotsava · 1915

Monday 26 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 35 minutes.

Decide it for

BaodingDelhiKolkataSingaporeSydneyJersey City

38°52′ N 115°28′ E · Asia/Shanghai · GeoNames 1816971

The two evenings

One ghaṭī is 24 minutes. Pradoṣa is 2 muhūrtas after sunset.

Evening of Sunday 25 July

Pūrṇimā is absent from pradoṣa. Not taken.

19:37 sunsetpradoṣa ends 20:53
19:1319:3720:0120:2520:4921:1321:37

0 of 77 minutes covered

Evening of Monday 26 July

Taken. The only evening Pūrṇimā reaches.

19:36 sunsetpradoṣa ends 20:53
Pūrṇimā ends 20:10:41
19:1219:3620:0020:2420:4821:1221:36

35 of 77 minutes covered, the first 35

Pūrṇimā presentPradoṣa, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Pūrṇimā runs from 22:59 on Sun 25 Jul to 20:11 on Mon 26 Jul.

    1915-07-25T14:58:37Z → 1915-07-26T12:10:42Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 19:37–20:53 on the 25th, 19:36–20:53 on the 26th.

    pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Pūrṇimā must be present during pradoṣa. It covers 0 of 77 minutes on the 25th and 35 of 77 on the 26th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102

  4. 04

    Tie-break

    Only one evening qualifies. No tie-break is needed.

    priority: unstated → only-day · margin 2093 s

  5. 05

    Ruling

    Śiva Śayanotsava, Baoding, 1915: Monday 26 July.

    confidence: determinate

Say it like this

In Baoding, Śiva Śayanotsava 1915 falls on Monday 26 July. Pūrṇimā runs from 22:59 on Sun 25 Jul to 20:11 on Mon 26 Jul and covers 35 of 77 minutes of pradoṣa that evening.

ahargana.org/baoding/festivals/1915/shiva-shayanotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 26 Jul
Ahargaṇa, classicalDisc centre, no refractionMon 26 Jul
compat-drikpanchangComparison profileMon 26 Jul
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/shiva-shayanotsava · ruleset 2026.3-draft

Month
Āṣāḍha, amānta
Pakṣa · aṅga
Śukla · Pūrṇimā
Kāla
Pradoṣa
Priority
Unstated
Tie-break
Longer coverage, as a boundary
Reference
CRC 1955, p. 102

“S 15 Guru purnima (paraviddha), Vyasa puja (paraviddha, 3 muhurtas after sunrise), Kokila vrata (sayahna vyapini). Siva sayanotsava (pradosavyapini).” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlacePūrṇimāSunset 25thCoveredSunset 26thCoveredRuled
Los Angeles06:59 → 04:1119:0080 min18:590 min25 Jul
Chicago08:59 → 06:1119:1775 min19:160 min25 Jul
Jersey City09:59 → 07:1119:1976 min19:180 min25 Jul
Port of Spain10:59 → 08:1118:3191 min18:310 min25 Jul
London14:59 → 12:1120:0066 min19:590 min25 Jul
Durban16:59 → 14:1117:18108 min17:190 min25 Jul
Dubai18:40 → 15:5218:4985 min18:480 min25 Jul
Delhi20:29 → 17:4119:1711 min19:160 min25 Jul
Kolkata20:29 → 17:4118:210 min18:210 min25 Jul
Singapore21:59 → 19:1118:160 min18:1655 min26 Jul
Sydney00:59 → 22:1117:090 min17:10110 min26 Jul
Suva02:54 → 00:0617:440 min17:44102 min26 Jul
Profile · tradition
pac-rp@2026.1 · smarta
Rule
shiva-shayanotsava@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

About Ahargaṇa