cdm/src/main/java/ucar/nc2/time/CalendarDate.java
public static CalendarDate of(long msecs) {
    // Constructs an instance set to the milliseconds from 1970-01-01T00:00:00Z using ISOChronology in the specified time zone.
    DateTime dt = new DateTime(msecs, DateTimeZone.UTC) ;
    return new CalendarDate(null, dt);
  }
public static CalendarDate of(long msecs) {
    // Constructs an instance set to the milliseconds from 1970-01-01T00:00:00Z using ISOChronology in the specified time zone.
    DateTime dt = new DateTime(msecs, DateTimeZone.UTC) ;
    return new CalendarDate(null, dt);
  }
Create CalendarDate from msecs since epoch
Uses standard Calendar.
@param msecs milliseconds from 1970-01-01T00:00:00Z
@return CalendarDate in UTC