Weton calculator: weekday, pasaran and neptu
Enter the day, month and year of birth: the tool works out the weton, its neptu value, and the next dates with the same weton.
Weton for 17 August 1995
Kamis Pon
Neptu 15: day 8 + market day 7.
| Weekday | Kamis |
| Market day | Pon |
| Neptu | 15 |
| Hijri date | outside 2025–2028 |
| Date | Weton |
|---|---|
| Thursday, 21 January 2027 | Kamis Pon |
| Thursday, 25 February 2027 | Kamis Pon |
| Thursday, 1 April 2027 | Kamis Pon |
| Thursday, 6 May 2027 | Kamis Pon |
| Thursday, 10 June 2027 | Kamis Pon |
| Thursday, 15 July 2027 | Kamis Pon |
Prepared by Radif Partners · Method · decrees reread on 28 October 2026
A weton combines the day of the week with the pasaran of the Javanese five-day cycle: Legi, Pahing, Pon, Wage and Kliwon. Since seven and five share no factor, the same pairing comes back every 35 days. Proclamation Day, 17 August 1945, fell on Jumat Legi, and the pasaran cycle has never been interrupted since, so any date can be counted back or forward with certainty. Neptu is the number that primbon tradition assigns to each weekday and pasaran: Sunday 5, Monday 4, Tuesday 3, Wednesday 7, Thursday 8, Friday 6, Saturday 9; Legi 5, Pahing 9, Pon 7, Wage 4, Kliwon 8. Totals range from 7 to 18. For example, Eid al-Fitr 2027 falls on Rabu Legi, neptu 12, and this page's update date, 28 October 2026, is Rabu Pon. The weton computation here is a calendar matter; primbon readings of neptu are outside the scope of this site.
Neptu of weekdays and pasaran
| Weekday | Neptu |
|---|---|
| Minggu | 5 |
| Senin | 4 |
| Selasa | 3 |
| Rabu | 7 |
| Kamis | 8 |
| Jumat | 6 |
| Sabtu | 9 |
| Pasaran | Neptu |
|---|---|
| Legi | 5 |
| Pahing | 9 |
| Pon | 7 |
| Wage | 4 |
| Kliwon | 8 |
A weton's neptu is the sum of the two. Primbon uses these tables for many purposes, from choosing a wedding date to moving house. This site only computes; we offer no readings.
Why the pasaran is never miscounted
The Javanese calendar runs several cycles at once. The five-day pasaran is the oldest and is still used by traditional markets that open on particular market days. Because the cycle has never had days inserted or skipped, a single reference date is enough to compute every other date. We use 17 August 1945, Jumat Legi, which is widely recorded in history.
Weton can also be shown for a whole year: choose "Javanese pasaran" on the printable 2027 calendar or on the home page calendar. For Hijri dates, use the Hijri converter.
Wednesday, 10 March 2027
Wednesday, 10 March 2027
1 Shawwal 1448 AH
| Javanese market day | Rabu Legi |
| Day of the month | 1 |
| Length of this month | 29 days |