A few years ago, I can't remember where it came from (happy to reference if there is a source), we were asked to stop writing the date on the board each day.
Encourage children to 'know the date each day'.
Improve their independence.
Improve their spelling of days and months.
Children use TV, newspapers, tables etc. to find out the date (like adults do).
Children are still able to date work and know what day /date it is.
Rather than just simply copying from the board, those who find spelling of days and months more challenging need to think more about, and remember, these words.
In addition, I save about 30 seconds per day, over 190 days. That's 80 minutes back per year! 80 minutes!