cdm/src/main/java/ucar/nc2/time/CalendarDate.java
public static CalendarDate of(Calendar cal, long msecs) {
    Chronology base = Calendar.getChronology(cal);
    DateTime dt = new DateTime(msecs, base) ;
    return new CalendarDate(cal, dt);
  }
public static CalendarDate of(Calendar cal, long msecs) {
    Chronology base = Calendar.getChronology(cal);
    DateTime dt = new DateTime(msecs, base) ;
    return new CalendarDate(cal, dt);
  }
Create CalendarDate from msecs since epoch
Uses the given  Calendar.
@param cal calendar to use, or null for default
@param msecs milliseconds from 1970-01-01T00:00:00Z
@return CalendarDate in UTC time zone.