2002
- Thursday, 10 January 2002 · Guru Pradosh (Krishna)
- Saturday, 26 January 2002 · Shani Pradosh (Shukla)
- Saturday, 9 February 2002 · Shani Pradosh (Krishna)
- Monday, 25 February 2002 · Soma Pradosh (Shukla)
- Monday, 11 March 2002 · Soma Pradosh (Krishna)
- Tuesday, 26 March 2002 · Bhauma Pradosh (Shukla)
- Tuesday, 9 April 2002 · Bhauma Pradosh (Krishna)
- Wednesday, 24 April 2002 · Budha Pradosh (Shukla)
- Thursday, 9 May 2002 · Guru Pradosh (Krishna)
- Friday, 24 May 2002 · Shukra Pradosh (Shukla)
- Saturday, 8 June 2002 · Shani Pradosh (Krishna)
- Saturday, 22 June 2002 · Shani Pradosh (Shukla)
- Sunday, 7 July 2002 · Ravi Pradosh (Krishna)
- Sunday, 21 July 2002 · Ravi Pradosh (Shukla)
- Tuesday, 6 August 2002 · Bhauma Pradosh (Krishna)
- Tuesday, 20 August 2002 · Bhauma Pradosh (Shukla)
- Wednesday, 4 September 2002 · Budha Pradosh (Krishna)
- Wednesday, 18 September 2002 · Budha Pradosh (Shukla)
- Friday, 4 October 2002 · Shukra Pradosh (Krishna)
- Friday, 18 October 2002 · Shukra Pradosh (Shukla)
- Saturday, 2 November 2002 · Shani Pradosh (Krishna)
- Sunday, 17 November 2002 · Ravi Pradosh (Shukla)
- Monday, 2 December 2002 · Soma Pradosh (Krishna)
- Tuesday, 17 December 2002 · Bhauma Pradosh (Shukla)
- Tuesday, 31 December 2002 · Bhauma Pradosh (Krishna)
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)
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.