2007
- Monday, 1 January 2007 · Soma Pradosh (Shukla)
- Tuesday, 16 January 2007 · Bhauma Pradosh (Krishna)
- Tuesday, 30 January 2007 · Bhauma Pradosh (Shukla)
- Thursday, 15 February 2007 · Guru Pradosh (Krishna)
- Thursday, 1 March 2007 · Guru Pradosh (Shukla)
- Friday, 16 March 2007 · Shukra Pradosh (Krishna)
- Friday, 30 March 2007 · Shukra Pradosh (Shukla)
- Sunday, 15 April 2007 · Ravi Pradosh (Krishna)
- Sunday, 29 April 2007 · Ravi Pradosh (Shukla)
- Monday, 14 May 2007 · Soma Pradosh (Krishna)
- Tuesday, 29 May 2007 · Bhauma Pradosh (Shukla)
- Tuesday, 12 June 2007 · Bhauma Pradosh (Krishna)
- Wednesday, 27 June 2007 · Budha Pradosh (Shukla)
- Thursday, 12 July 2007 · Guru Pradosh (Krishna)
- Friday, 27 July 2007 · Shukra Pradosh (Shukla)
- Friday, 10 August 2007 · Shukra Pradosh (Krishna)
- Sunday, 26 August 2007 · Ravi Pradosh (Shukla)
- Saturday, 8 September 2007 · Shani Pradosh (Krishna)
- Monday, 24 September 2007 · Soma Pradosh (Shukla)
- Monday, 8 October 2007 · Soma Pradosh (Krishna)
- Wednesday, 24 October 2007 · Budha Pradosh (Shukla)
- Wednesday, 7 November 2007 · Budha Pradosh (Krishna)
- Thursday, 22 November 2007 · Guru Pradosh (Shukla)
- Thursday, 6 December 2007 · Guru Pradosh (Krishna)
- Friday, 21 December 2007 · Shukra Pradosh (Shukla)
2008
- Saturday, 5 January 2008 · Shani Pradosh (Krishna)
- Sunday, 20 January 2008 · Ravi Pradosh (Shukla)
- Monday, 4 February 2008 · Soma Pradosh (Krishna)
- Monday, 18 February 2008 · Soma Pradosh (Shukla)
- Wednesday, 5 March 2008 · Budha Pradosh (Krishna)
- Wednesday, 19 March 2008 · Budha Pradosh (Shukla)
- Thursday, 3 April 2008 · Guru Pradosh (Krishna)
- Thursday, 17 April 2008 · Guru Pradosh (Shukla)
- Saturday, 3 May 2008 · Shani Pradosh (Krishna)
- Saturday, 17 May 2008 · Shani Pradosh (Shukla)
- Sunday, 1 June 2008 · Ravi Pradosh (Krishna)
- Sunday, 15 June 2008 · Ravi Pradosh (Shukla)
- Monday, 30 June 2008 · Soma Pradosh (Krishna)
- Tuesday, 15 July 2008 · Bhauma Pradosh (Shukla)
- Wednesday, 30 July 2008 · Budha Pradosh (Krishna)
- Thursday, 14 August 2008 · Guru Pradosh (Shukla)
- Thursday, 28 August 2008 · Guru Pradosh (Krishna)
- Friday, 12 September 2008 · Shukra Pradosh (Shukla)
- Friday, 26 September 2008 · Shukra Pradosh (Krishna)
- Sunday, 12 October 2008 · Ravi Pradosh (Shukla)
- Sunday, 26 October 2008 · Ravi Pradosh (Krishna)
- Tuesday, 11 November 2008 · Bhauma Pradosh (Shukla)
- Monday, 24 November 2008 · Soma Pradosh (Krishna)
- Wednesday, 10 December 2008 · Budha Pradosh (Shukla)
- Wednesday, 24 December 2008 · Budha 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.