Onam 2028 (popular practice)

Onam is popular practice; no text read gives the day. Tiruvoṇam (Thiruvonam) in the month of Chiṅṅam (Chingam) in 2028, by our stated rule, for Kochi, Thiruvananthapuram and your city.

Popular practice; no text read gives the day.

Onam 2028 in Kochi

Friday, 1 September

Onam is in 684 days.

Tiruvoṇam (Śravaṇa)Fri 1 Sep, 01:24 to Sat 2 Sep, 04:03
Atham (our reading; popular practice)Wednesday, 23 August
Chiṅṅam17 August to 16 September

Our rule

Popular practice; no text read gives the day. The six-nāḍikā test is our statement of common Kerala usage, not a rule from a text.

  • A civil day belongs to Chiṅṅam when the Sun is in sidereal Siṃha at its sunrise.
  • Onam, Tiruvoṇam, is the Chiṅṅam day whose sunrise falls in the Śravaṇa nakṣatra with at least six nāḍikās (2 h 24 min) of Śravaṇa left after it. If less remains, Onam is the day before, which holds most of it.
  • When Chiṅṅam holds two Tiruvoṇams, both are shown; the rule gives two days and does not choose.
  • Atham, the Hasta day that opens the festival (our reading; popular practice), is the last day before Tiruvoṇam whose sunrise falls in Hasta with six nāḍikās of it left; if less remains, it is the day before. It can fall in the last days of Karkaṭakam, before Chiṅṅam begins. The festival runs from Atham to Tiruvoṇam.

In Kochi, Śravaṇa holds sunrise on Friday, 1 September and runs until Sat 2 Sep, 04:03, six nāḍikās or more after it, so Tiruvoṇam is that day.

Atham is on Wednesday, 23 August: Hasta holds that sunrise and runs until Wed 23 Aug, 23:16, six nāḍikās or more after it (our reading; popular practice). The festival runs from Atham to Tiruvoṇam.

The texts

No text read gives Onam. The Śravaṇa-dvādaśī and the Vāmana-jayantī share its Vāmana story, but they are lunar days and give no date for it. DS pp. 56, 58

Onam 2028 around the world

Each city’s own sunrise
Friday, 1 September
  • KochiŚravaṇa Fri 1 Sep, 01:24 to Sat 2 Sep, 04:03
  • ThiruvananthapuramŚravaṇa Fri 1 Sep, 01:24 to Sat 2 Sep, 04:03
  • DelhiŚravaṇa Fri 1 Sep, 01:24 to Sat 2 Sep, 04:03
  • MumbaiŚravaṇa Fri 1 Sep, 01:24 to Sat 2 Sep, 04:03
  • KolkataŚravaṇa Fri 1 Sep, 01:24 to Sat 2 Sep, 04:03
  • ChennaiŚravaṇa Fri 1 Sep, 01:24 to Sat 2 Sep, 04:03
  • BengaluruŚravaṇa Fri 1 Sep, 01:24 to Sat 2 Sep, 04:03
  • HyderabadŚravaṇa Fri 1 Sep, 01:24 to Sat 2 Sep, 04:03
  • AhmedabadŚravaṇa Fri 1 Sep, 01:24 to Sat 2 Sep, 04:03
  • PuneŚravaṇa Fri 1 Sep, 01:24 to Sat 2 Sep, 04:03
  • JaipurŚravaṇa Fri 1 Sep, 01:24 to Sat 2 Sep, 04:03
  • LucknowŚravaṇa Fri 1 Sep, 01:24 to Sat 2 Sep, 04:03
  • LondonŚravaṇa Thu 31 Aug, 20:54 to Fri 1 Sep, 23:33
  • New York CityŚravaṇa Thu 31 Aug, 15:54 to Fri 1 Sep, 18:33
  • TorontoŚravaṇa Thu 31 Aug, 15:54 to Fri 1 Sep, 18:33
  • SydneyŚravaṇa Fri 1 Sep, 05:54 to Sat 2 Sep, 08:33
  • DubaiŚravaṇa Thu 31 Aug, 23:54 to Sat 2 Sep, 02:33
  • SingaporeŚravaṇa Fri 1 Sep, 03:54 to Sat 2 Sep, 06:33

Other years: Onam 2027, Onam 2029; all Onam dates.

Questions

By our stated rule; popular practice throughout.

When is Onam 2028?

In Kochi, on Friday, 1 September 2028: Tiruvoṇam in the month of Chiṅṅam, by our stated rule. The festival runs from Atham, on Wednesday, 23 August (our reading; popular practice), to Tiruvoṇam. Popular practice; no text read gives the day.

How is the Onam date found?

By our stated rule, from common Kerala usage: Onam is the day in the solar month of Chiṅṅam (Chingam) whose sunrise falls in the Śravaṇa nakṣatra (Tiruvoṇam) with at least six nāḍikās, 2 h 24 min, of it left; if less remains, the day before. A day is in Chiṅṅam when the Sun is in sidereal Siṃha at its sunrise.

Is Onam in the classical texts?

No. The Nirṇaya-sindhu, the Dharmasindhu and the Vratarāja have no Onam. The Śravaṇa-dvādaśī and the Vāmana-jayantī share its Vāmana story, but they are lunar days and give no date for it. DS pp. 56, 58

Why is the date different in Sydney or other cities?

The Sun enters Siṃha and the Moon enters and leaves Śravaṇa at the same moment everywhere, but sunrise comes at different hours. The sunrise that holds Śravaṇa with six nāḍikās left can then fall on another day.

How the day is found

Read the methodology
Basis
Popular practice; no text read gives the day. The rule is ours, stated in full.
Chiṅṅam
The civil days whose sunrise has the Sun in sidereal Siṃha (Lahiri ayanāṃśa), for the chosen city.
Tiruvoṇam
The Chiṅṅam day whose sunrise is in Śravaṇa with six nāḍikās (2 h 24 min) or more of it left. When less is left, Tiruvoṇam is the day before.
Atham
The last day before Tiruvoṇam whose sunrise is in Hasta with six nāḍikās or more of it left. When less is left, Atham is the day before. Our reading; popular practice.
Sunrise
At the centre of the Sun’s disc, with refraction, for the chosen city. Every date is that city’s own.

Sunrise and sunset at the centre of the Sun’s disc, with refraction · each city’s own time · Swiss Ephemeris · Method