2005
- Saturday, 8 January 2005 · Shani Pradosh (Krishna)
- Saturday, 22 January 2005 · Shani Pradosh (Shukla)
- Sunday, 6 February 2005 · Ravi Pradosh (Krishna)
- Monday, 21 February 2005 · Soma Pradosh (Shukla)
- Tuesday, 8 March 2005 · Bhauma Pradosh (Krishna)
- Wednesday, 23 March 2005 · Budha Pradosh (Shukla)
- Wednesday, 6 April 2005 · Budha Pradosh (Krishna)
- Thursday, 21 April 2005 · Guru Pradosh (Shukla)
- Thursday, 5 May 2005 · Guru Pradosh (Krishna)
- Saturday, 21 May 2005 · Shani Pradosh (Shukla)
- Saturday, 4 June 2005 · Shani Pradosh (Krishna)
- Sunday, 19 June 2005 · Ravi Pradosh (Shukla)
- Sunday, 3 July 2005 · Ravi Pradosh (Krishna)
- Tuesday, 19 July 2005 · Bhauma Pradosh (Shukla)
- Tuesday, 2 August 2005 · Bhauma Pradosh (Krishna)
- Wednesday, 17 August 2005 · Budha Pradosh (Shukla)
- Wednesday, 31 August 2005 · Budha Pradosh (Krishna)
- Thursday, 15 September 2005 · Guru Pradosh (Shukla)
- Friday, 30 September 2005 · Shukra Pradosh (Krishna)
- Saturday, 15 October 2005 · Shani Pradosh (Shukla)
- Sunday, 30 October 2005 · Ravi Pradosh (Krishna)
- Sunday, 13 November 2005 · Ravi Pradosh (Shukla)
- Tuesday, 29 November 2005 · Bhauma Pradosh (Krishna)
- Tuesday, 13 December 2005 · Bhauma Pradosh (Shukla)
- Wednesday, 28 December 2005 · Budha Pradosh (Krishna)
2006
- Wednesday, 11 January 2006 · Budha Pradosh (Shukla)
- Friday, 27 January 2006 · Shukra Pradosh (Krishna)
- Friday, 10 February 2006 · Shukra Pradosh (Shukla)
- Saturday, 25 February 2006 · Shani Pradosh (Krishna)
- Sunday, 12 March 2006 · Ravi Pradosh (Shukla)
- Monday, 27 March 2006 · Soma Pradosh (Krishna)
- Monday, 10 April 2006 · Soma Pradosh (Shukla)
- Tuesday, 25 April 2006 · Bhauma Pradosh (Krishna)
- Wednesday, 10 May 2006 · Budha Pradosh (Shukla)
- Wednesday, 24 May 2006 · Budha Pradosh (Krishna)
- Friday, 9 June 2006 · Shukra Pradosh (Shukla)
- Friday, 23 June 2006 · Shukra Pradosh (Krishna)
- Saturday, 8 July 2006 · Shani Pradosh (Shukla)
- Saturday, 22 July 2006 · Shani Pradosh (Krishna)
- Monday, 7 August 2006 · Soma Pradosh (Shukla)
- Monday, 21 August 2006 · Soma Pradosh (Krishna)
- Tuesday, 5 September 2006 · Bhauma Pradosh (Shukla)
- Tuesday, 19 September 2006 · Bhauma Pradosh (Krishna)
- Wednesday, 4 October 2006 · Budha Pradosh (Shukla)
- Thursday, 19 October 2006 · Guru Pradosh (Krishna)
- Friday, 3 November 2006 · Shukra Pradosh (Shukla)
- Saturday, 18 November 2006 · Shani Pradosh (Krishna)
- Saturday, 2 December 2006 · Shani Pradosh (Shukla)
- Monday, 18 December 2006 · Soma 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.