programming cross-technology date time date-time [Edit] EN Date & time - common problems (Cross technology) 2 contributors 7 contributions 0 discussions 0 points Created by: Emelia 517 ProblemCrossJS/NodeJavaC#PythonBashPHPC++day name for the first day of monthlinklink convert unix timestamp to Datelinklink convert unix timestamp to timelinklink get number of days in monthlinklink check if specific year is leaplinklink get number of days in specific yearlinklink