
checkdate  Validate a gregorian date/time
date  Format a local time/date
getdate  Get date/time information
gettimeofday  Get current time
gmdate  Format a GMT/CUT date/time
gmmktime  Get UNIX timestamp for a GMT date
gmstrftime  Format a GMT/CUT time/date according to locale settings 
localtime  Get the local time
microtime  Return current UNIX timestamp with microseconds
mktime  Get UNIX timestamp for a date
strftime  Format a local time/date according to locale settings 
strtotime  Parse about any English textual datetime description into a UNIX timestamp 
time  Return current UNIX timestamp
