Learn about the time string function.
Formats 5 – 7 that specify only a time assume a date of 2000-01-01. Format 8 is converted into the current date and time, using Universal Coordinated Time (UTC). Format 9 is the Julian day number expressed as a floating point value.
uDate() // returns something like "2006-03-01"
uDate() is equivalent to uDate("now")
uDate("2004-01-04 14:26:33") // returns the date part "2004-01-04"