2010-12←  2011-01 looping  →2011-02

20110101_0000 UTC	20110102_0000 UTC	20110103_0000 UTC	20110104_0000 UTC
20110105_0000 UTC	20110106_0000 UTC	20110107_0000 UTC	20110108_0000 UTC
20110109_0000 UTC	20110110_0000 UTC	20110111_0000 UTC	20110112_0000 UTC
20110113_0000 UTC	20110114_0000 UTC	20110115_0000 UTC	20110116_0000 UTC
20110117_0000 UTC	20110118_0000 UTC	20110119_0000 UTC	20110120_0000 UTC
20110121_0000 UTC	20110122_0000 UTC	20110123_0000 UTC	20110124_0000 UTC
20110125_0000 UTC	20110126_0000 UTC	20110127_0000 UTC	20110128_0000 UTC
20110129_0000 UTC	20110130_0000 UTC	20110131_0000 UTC

2010-12←  2011-01 looping  →2011-02