How do Thai holidays in May affect the processing time for a DTV visa application submitted from Cambodia?

Hi all. I looked up online the Thai holidays in May, I'll list below:

* Thursday, May 1st: Labour Day (observed by banks and the private sector, but government offices are typically open)

* Sunday, May 4th: Anniversary of the Coronation of King Maha Vajiralongkorn (National Holiday)

* Monday, May 5th: Coronation Holiday (Substitution Holiday)

* Friday, May 9th: The Royal Ploughing Ceremony Day (Government Holiday and Bank Holiday)

* Sunday, May 11th: Visakha Bucha Day (Buddha Day) (National Holiday)

* Monday, May 12th: Day off for Visakha Bucha (National Holiday)

So if in Cambodia, it normally takes 11 working days to get the DTV. If I submitted on April 27, am I supposed to add this number of days of holidays to 11 to determine when I might get approved?

I'm guessing more than 3 weeks wait time.