Puzzle

Today children came back to Friend's after a Christmas and New Year holiday. 

It's interesting here in Ukraine. If a holiday happens to be on Saturday or Sunday, they get an extra day of because the holiday is on their day of. 

New Year was on weekend, so our team was not working on Monday.  Now they work from Tuesday to Thursday. 7-8th of January is Christmas 
(Julian Calendar)  here in Ukraine.