2003
- Wednesday, 15 January 2003 · Budha Pradosh (Shukla)
- Wednesday, 29 January 2003 · Budha Pradosh (Krishna)
- Friday, 14 February 2003 · Shukra Pradosh (Shukla)
- Friday, 28 February 2003 · Shukra Pradosh (Krishna)
- Sunday, 16 March 2003 · Ravi Pradosh (Shukla)
- Sunday, 30 March 2003 · Ravi Pradosh (Krishna)
- Monday, 14 April 2003 · Soma Pradosh (Shukla)
- Monday, 28 April 2003 · Soma Pradosh (Krishna)
- Tuesday, 13 May 2003 · Bhauma Pradosh (Shukla)
- Wednesday, 28 May 2003 · Budha Pradosh (Krishna)
- Thursday, 12 June 2003 · Guru Pradosh (Shukla)
- Thursday, 26 June 2003 · Guru Pradosh (Krishna)
- Friday, 11 July 2003 · Shukra Pradosh (Shukla)
- Saturday, 26 July 2003 · Shani Pradosh (Krishna)
- Saturday, 9 August 2003 · Shani Pradosh (Shukla)
- Monday, 25 August 2003 · Soma Pradosh (Krishna)
- Monday, 8 September 2003 · Soma Pradosh (Shukla)
- Tuesday, 23 September 2003 · Bhauma Pradosh (Krishna)
- Tuesday, 7 October 2003 · Bhauma Pradosh (Shukla)
- Thursday, 23 October 2003 · Guru Pradosh (Krishna)
- Thursday, 6 November 2003 · Guru Pradosh (Shukla)
- Friday, 21 November 2003 · Shukra Pradosh (Krishna)
- Saturday, 6 December 2003 · Shani Pradosh (Shukla)
- Sunday, 21 December 2003 · Ravi Pradosh (Krishna)
2004
- Sunday, 4 January 2004 · Ravi Pradosh (Shukla)
- Monday, 19 January 2004 · Soma Pradosh (Krishna)
- Tuesday, 3 February 2004 · Bhauma Pradosh (Shukla)
- Wednesday, 18 February 2004 · Budha Pradosh (Krishna)
- Thursday, 4 March 2004 · Guru Pradosh (Shukla)
- Thursday, 18 March 2004 · Guru Pradosh (Krishna)
- Saturday, 3 April 2004 · Shani Pradosh (Shukla)
- Friday, 16 April 2004 · Shukra Pradosh (Krishna)
- Sunday, 2 May 2004 · Ravi Pradosh (Shukla)
- Sunday, 16 May 2004 · Ravi Pradosh (Krishna)
- Monday, 31 May 2004 · Soma Pradosh (Shukla)
- Monday, 14 June 2004 · Soma Pradosh (Krishna)
- Wednesday, 30 June 2004 · Budha Pradosh (Shukla)
- Wednesday, 14 July 2004 · Budha Pradosh (Krishna)
- Thursday, 29 July 2004 · Guru Pradosh (Shukla)
- Friday, 13 August 2004 · Shukra Pradosh (Krishna)
- Friday, 27 August 2004 · Shukra Pradosh (Shukla)
- Saturday, 11 September 2004 · Shani Pradosh (Krishna)
- Sunday, 26 September 2004 · Ravi Pradosh (Shukla)
- Monday, 11 October 2004 · Soma Pradosh (Krishna)
- Monday, 25 October 2004 · Soma Pradosh (Shukla)
- Wednesday, 10 November 2004 · Budha Pradosh (Krishna)
- Wednesday, 24 November 2004 · Budha Pradosh (Shukla)
- Thursday, 9 December 2004 · Guru Pradosh (Krishna)
- Thursday, 23 December 2004 · Guru Pradosh (Shukla)
How the date is fixed
Trayodashi, the thirteenth day of each half, kept on the day it is running at pradosh, the twilight after sunset. It is named for its weekday: Soma Pradosh, Shani Pradosh and so on.
About
Pradosh vrat is kept twice a month, on the Trayodashi of each fortnight, during the pradosh period of roughly 96 minutes after sunset. The day is chosen so that Trayodashi is running at sunset, even if it is absent at sunrise; when it touches sunset on two days, the first is usually taken. Each weekday gives the observance a name, Soma Pradosh on Monday and Shani Pradosh on Saturday being the ones most often singled out. In Tamil Nadu the Pradosham puja at Shiva temples, with the Nandi abhisheka, is a regular feature of temple calendars.
How it is observed
A fast until dusk and Shiva worship with abhisheka in the pradosh window after sunset.