Help Me Filter this strange timestamp


I got raw log from a wireless controller, and it show strange timestamp, i can filter the log after timestamp, but i cant filter the timestamp,

this is the raw log,
<190>2015-09-11T15:40:37.05+07:00 MAP-NUS03-PRESSROOM-BELAKANG %DOT11-6-CLIENT_ASSOC_IGNORED: Client '18-59-36-D2-D0-C8' ignored association on radio 'MAP-NUS03-PRESSROOM-BELAKANG:R1' wlan 'ANGGOTA DPR RI': BAND-DISCOVERY

Any help appreciated...THx

Sorry, case Close i got the filter in default pattern

ISO8601 is not strange, you should be using it everywhere!