A brief introduction to the Calendar. There are 12 months in the Thedosian calendar with 30 days in each month. Amongst these 12 months are five major holidays. These are as follows:

 

We assume that the Thedosian week is the same as our week at seven days. In game, Tuesday has been mentioned by both Alistair and Hawke and Friday is mentioned by Bull. So my theory is that like the months, the days of the week were originally named in Tevene, specifically from the seven Old Gods.

I found a Latin translation of every descriptor for the old gods and attempted to make a Tevene sounding weekday for each. These are as follows:

 

From here, here are the important dates I put together in my own personal calendar of what occurs during The Sordid Tale of Meryell Verlen: