2017-05←  2017-06 looping  →2017-07

20170601_0000 UTC	20170602_0000 UTC	20170603_0000 UTC	20170604_0000 UTC
20170605_0000 UTC	20170606_0000 UTC	20170607_0000 UTC	20170608_0000 UTC
20170609_0000 UTC	20170610_0000 UTC	20170611_0000 UTC	20170612_0000 UTC
20170613_0000 UTC	20170614_0000 UTC	20170615_0000 UTC	20170616_0000 UTC
20170617_0000 UTC	20170618_0000 UTC	20170619_0000 UTC	20170620_0000 UTC
20170621_0000 UTC	20170622_0000 UTC	20170623_0000 UTC	20170624_0000 UTC
20170625_0000 UTC	20170626_0000 UTC	20170627_0000 UTC	20170628_0000 UTC
20170629_0000 UTC	20170630_0000 UTC

2017-05←  2017-06 looping  →2017-07