Ruling · Bhogi · 1901

Saturday 12 January

Determinatein Perth, under the Rashtriya Panchang method. Kept the day before Pongal, Sun 13 Jan. Clear of every threshold by 203 minutes.

Decide it for

31°57′ S 115°52′ E · Australia/Perth · GeoNames 2063523

The two days

A tick is five ghaṭīs, two hours. The day is counted from the sunset before it to its own sunset.

Day of Sunday 13 January

Taken for Pongal. The transit falls in this day. Bhogi is the day before.

19:27 sunset beforesunset 19:26
Sun enters Makara 16:03:45
19:0323:0303:0307:0311:0315:0319:03

Falls in this day

Day of Monday 14 January

The transit does not fall in this day. Not taken.

19:26 sunset beforesunset 19:26
19:0223:0203:0207:0211:0215:0219:02

Does not fall in this day

The day, the window the rule readsThe instant the Sun enters Makara

How it was decided

  1. 01

    Aṅga

    The Sun enters Makara at 16:04 on Sun 13 Jan.

    1901-01-13T08:03:46Z · nirayana, lahiri-iae1985

  2. 02

    Kāla

    The day is counted from the sunset before it to its own sunset: the day of the 13th ends at 19:26, and the day of the 14th ends at 19:26.

    sunset-day: sunset-to-sunset · sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    The festival is kept on the day of the transit, the day counted from the sunset before it: a transit after sunset belongs to the next day. The transit falls between the sunsets of the 12th and the 13th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106

  4. 04

    Tie-break

    An instant falls in one day and no other. No tie-break is needed.

    day counted from sunset → only-day · margin 12160 s

  5. 05

    Counted

    Bhogi is kept the day before Pongal: Sunday 13 January is the day taken above.

    follows: pongal − 1 d

  6. 06

    Ruling

    Bhogi, Perth, 1901: Saturday 12 January.

    confidence: determinate

Say it like this

In Perth, Bhogi 1901 falls on Saturday 12 January. It is kept the day before Pongal, which falls on Sunday 13 January. The Sun enters Makara at 16:04 on Sun 13 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 12th and the 13th.

ahargana.org/perth/festivals/1901/bhogi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 12 Jan
Ahargaṇa, classicalDisc centre, no refractionSat 12 Jan
compat-drikpanchangComparison profileSat 12 Jan
Counted from midnightCRC 1955, p. 106Sat 12 Jan
Counted from sunrise (the Orissa rule)CRC 1955, p. 244Sat 12 Jan
No institution has a recorded ruling for Perth.

Institutional rulings are recorded with a source address, and are never edited to agree.

The rule, as data

/rules/bhogi · ruleset 2026.3-draft

Sign entered
Makara
Zodiac
Nirayana
Ayanāṃśa
lahiri-iae1985
Day counted from
Sunset
Tie-break
None: an instant
Kept
The day before Pongal

“Makaradi — Makaradi snana, Magh Bihu (Assam), Tila samkranti, Pongal (S. India), Bhogi (S. India — on the day before Pongal), Mattu Pongal (S. India — on the day after Pongal).” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106. “The Tamil rule: In the Tamil districts the rule is that when a samkranti takes place before sunset, the month begins on the same day, while if it takes place after sunset the month begins on the following day.” Calendar Reform Committee 1955, Rules of Samkranti, p. 244.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceSun enters MakaraSunset before 13thCoveredSunset before 14thCoveredRuled
Los Angeles00:0417:04falls17:04no12 Jan
Chicago02:0416:41falls16:42no12 Jan
Jersey City03:0416:50falls16:51no12 Jan
Port of Spain04:0418:01falls18:01no12 Jan
London08:0416:15falls16:17no12 Jan
Durban09:3418:31falls18:31no12 Jan
Dubai11:4517:29falls17:30no12 Jan
Delhi13:2517:34falls17:35no12 Jan
Kolkata13:2517:01falls17:02no12 Jan
Singapore14:5918:09falls18:10no12 Jan
Sydney18:0419:10falls19:10no12 Jan
Suva19:5918:43no18:43falls13 Jan
Profile · tradition
pac-rp@2026.1 · smarta
Rule
bhogi@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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