2010-05←  2010-06 looping  →2010-07

20100601_0000 UTC	20100602_0000 UTC	20100603_0000 UTC	20100604_0000 UTC
20100605_0000 UTC	20100606_0000 UTC	20100607_0000 UTC	20100608_0000 UTC
20100609_0000 UTC	20100610_0000 UTC	20100611_0000 UTC	20100612_0000 UTC
20100613_0000 UTC	20100614_0000 UTC	20100615_0000 UTC	20100616_0000 UTC
20100617_0000 UTC	20100618_0000 UTC	20100619_0000 UTC	20100620_0000 UTC
20100621_0000 UTC	20100622_0000 UTC	20100623_0000 UTC	20100624_0000 UTC
20100625_0000 UTC	20100626_0000 UTC	20100627_0000 UTC	20100628_0000 UTC
20100629_0000 UTC	20100630_0000 UTC

2010-05←  2010-06 looping  →2010-07