2012-12←  2013-01 looping  →2013-02

20130101_0000 UTC	20130102_0000 UTC	20130103_0000 UTC	20130104_0000 UTC
20130105_0000 UTC	20130106_0000 UTC	20130107_0000 UTC	20130108_0000 UTC
20130109_0000 UTC	20130110_0000 UTC	20130111_0000 UTC	20130112_0000 UTC
20130113_0000 UTC	20130114_0000 UTC	20130115_0000 UTC	20130116_0000 UTC
20130117_0000 UTC	20130118_0000 UTC	20130119_0000 UTC	20130120_0000 UTC
20130121_0000 UTC	20130122_0000 UTC	20130123_0000 UTC	20130124_0000 UTC
20130125_0000 UTC	20130126_0000 UTC	20130127_0000 UTC	20130128_0000 UTC
20130129_0000 UTC	20130130_0000 UTC	20130131_0000 UTC

2012-12←  2013-01 looping  →2013-02