妥当な内容中の日付か時刻の文字列
History
Time
Change
2008-12-13 05:06:13+00:00
Created
2008-12-13 05:06:13+00:00
Associated with
8458
2014-05-06 10:57:27+00:00
Disassociated from
8458
2014-05-06 10:57:34+00:00
Associated with
21797