Ruling · Lakṣmī Pūjā (Diwali) · 1921

Sunday 30 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 474 minutes.

Decide it for

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 30 October

Taken. The only evening Amāvasyā reaches.

17:21 sunsetpradoṣa ends 19:08
16:5717:2117:4518:0918:3318:5719:21

107 of 107 minutes covered

Evening of Monday 31 October

Amāvasyā is absent from pradoṣa. Not taken.

17:20 sunsetpradoṣa ends 19:07
16:5617:2017:4418:0818:3218:5619:20

0 of 107 minutes covered

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

How it was decided

  1. 01

    Aṅga

    Amāvasyā runs from 09:27 on Sun 30 Oct to 07:38 on Mon 31 Oct.

    1921-10-30T01:27:22Z → 1921-10-30T23:38:26Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:21–19:08 on the 30th, 17:20–19:07 on the 31st.

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

  3. 03

    Rule

    Amāvasyā must be present during pradoṣa. It covers 107 of 107 minutes on the 30th and 0 of 107 on the 31st.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104

  4. 04

    Tie-break

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

    priority: unstated → only-day · margin 28413 s

  5. 05

    Ruling

    Lakṣmī Pūjā, Baoding, 1921: Sunday 30 October.

    confidence: determinate

Say it like this

In Baoding, Lakṣmī Pūjā (Diwali) 1921 falls on Sunday 30 October. Amāvasyā runs from 09:27 on Sun 30 Oct to 07:38 on Mon 31 Oct and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1921/diwali-lakshmi-puja · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 30 Oct
Ahargaṇa, classicalDisc centre, no refractionSun 30 Oct
compat-drikpanchangComparison profileSun 30 Oct
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/diwali-lakshmi-puja · ruleset 2026.3-draft

Month
Āśvina, amānta
Pakṣa · aṅga
Kṛṣṇa · Amāvasyā
Kāla
Pradoṣa
Priority
Unstated
Tie-break
Longer coverage, as a boundary
Reference
CRC 1955, p. 104

“K 30 Kali puja (nisithavyapini), Dipavali or Diwali (pradosa), Mahalaksmipuja (pradosa)” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceAmāvasyāSunset 30thCoveredSunset 31stCoveredRuled
Los Angeles17:27 → 15:3817:020 min17:010 min29 Oct
Chicago20:27 → 17:3816:4851 min16:460 min30 Oct
Jersey City20:27 → 18:3816:55103 min16:540 min30 Oct
Port of Spain21:27 → 19:3817:4298 min17:420 min30 Oct
London01:27 → 23:3816:38114 min16:360 min30 Oct
Durban03:27 → 01:3818:1686 min18:160 min30 Oct
Dubai05:27 → 03:3817:40102 min17:390 min30 Oct
Delhi06:57 → 05:0817:38103 min17:370 min30 Oct
Kolkata06:57 → 05:0817:01101 min17:000 min30 Oct
Singapore08:27 → 06:3817:5095 min17:500 min30 Oct
Sydney11:27 → 09:3818:2085 min18:210 min30 Oct
Suva13:27 → 11:3818:1290 min18:120 min30 Oct
Profile · tradition
pac-rp@2026.1 · smarta
Rule
diwali-lakshmi-puja@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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