Chris Muller uploaded a new version of Chronology-Core to project The Inbox:
http://source.squeak.org/inbox/Chronology-Core-cmm.45.mcz

==================== Summary ====================

Name: Chronology-Core-cmm.45
Author: cmm
Time: 14 May 2019, 10:33:41.936949 pm
UUID: 6355a6a7-febb-4ac8-a024-bf13bd00b8dc
Ancestors: Chronology-Core-nice.44

- Make #utcOffset: match the prior behavior.
- Move Duration convenience constructors in Number to this package.

=============== Diff against Chronology-Core-nice.44 ===============

Item was changed:
  ----- Method: DateAndTime>>utcOffset: (in category 'squeak protocol') -----
+ utcOffset: anOffset 
+ 	"Answer a DateAndTime equivalent to the receiver but offset from UTC by anOffset"
+ 	^ self class
+ 		utcMicroseconds: utcMicroseconds
+ 		offset: anOffset asDuration asSeconds!
- utcOffset: anOffset
- 
- 	"Answer a <DateAndTime> equivalent to the receiver but offset from UTC by anOffset"
- 
- 	self flag: #FIXME. "check the definition of this and of #offset:"
- 	^self utcMicroseconds: utcMicroseconds offset: anOffset asDuration asSeconds
- !

Item was added:
+ ----- Method: Number>>microSecond (in category '*chronology-core') -----
+ microSecond
+ 	^ self sign microSeconds!

Item was added:
+ ----- Method: Number>>microSeconds (in category '*chronology-core') -----
+ microSeconds
+ 	^ Duration nanoSeconds: self * 1000!

Item was added:
+ ----- Method: Number>>milliSecond (in category '*chronology-core') -----
+ milliSecond
+ 
+ 	^ self sign milliSeconds
+ !

Item was added:
+ ----- Method: Number>>milliSeconds (in category '*chronology-core') -----
+ milliSeconds
+ 
+ 	^ Duration milliSeconds: self
+ !

Item was added:
+ ----- Method: Number>>nanoSecond (in category '*chronology-core') -----
+ nanoSecond
+ 
+ 	^ self sign nanoSeconds
+ !

Item was added:
+ ----- Method: Number>>nanoSeconds (in category '*chronology-core') -----
+ nanoSeconds
+ 
+ 	^ Duration nanoSeconds: self.!

Item was added:
+ ----- Method: Number>>second (in category '*chronology-core') -----
+ second
+ 
+ 	^ self sign seconds
+ !

Item was added:
+ ----- Method: Number>>seconds (in category '*chronology-core') -----
+ seconds
+ 
+ 	^ Duration seconds: self!