'From Pharo2.0a of ''18 April 2012'' [Latest update: #20216] on 16 July 2012 at 7:12:38 pm'! DateAndTime instVarNames at: 3 put: #julianDayNumber. Magnitude subclass: #DateAndTime instanceVariableNames: 'seconds offset julianDayNumber nanos ' classVariableNames: 'ClockProvider DaysSinceEpoch LastMilliSeconds LastTick LastTickSemaphore LocalTimeZone MilliSecondOffset OffsetsAreValid ' poolDictionaries: 'ChronologyConstants' category: 'Kernel-Chronology'! !