10 instances from 2 years 2018 - 6 instances Jan 9 10 Feb Mar Apr May Jun 21 28 Jul 1 2 Aug Sep Oct Nov Dec 2017 - 4 instances Jan Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 09:30:57 10:30:56 Jul Aug Sep Oct 4 Nov Dec 27