au.dateStringToMJD(datestring='2011/10/15 05:00:00', datestring2='', verbose=True, use_metool=True):
CASA <4>: au.dateStringToMJD('2010-08-08 12:34') MJD= 55416.52361, MJDseconds = 4787987640.0, JD= 2455417.02361 Out[4]: 55416.523611111108-- ToddHunter - 2012-08-28