Some kind of magic happens ...
I pull date from mysql,

UNIX_TIMESTAMP(users.birthday) as birthday

and bring out

  date("dmY",$row['birthday'])

So, all dates starting from April 1, 2002 are shown normally, and March 31, 2002 is shown as March 30, and all previous dates are also shown one day less.
Tried to use both date, and timespamp. What is zanah?

    1 answer 1

    The reason for the bug was in summer / winter time. It was decided to add to the date in timestamp 3600 format.