2017-11←  2017-12 looping  →2018-01

20171201_0000 UTC	20171202_0000 UTC	20171203_0000 UTC	20171204_0000 UTC
20171205_0000 UTC	20171206_0000 UTC	20171207_0000 UTC	20171208_0000 UTC
20171209_0000 UTC	20171210_0000 UTC	20171211_0000 UTC	20171212_0000 UTC
20171213_0000 UTC	20171214_0000 UTC	20171215_0000 UTC	20171216_0000 UTC
20171217_0000 UTC	20171218_0000 UTC	20171219_0000 UTC	20171220_0000 UTC
20171221_0000 UTC	20171222_0000 UTC	20171223_0000 UTC	20171224_0000 UTC
20171225_0000 UTC	20171226_0000 UTC	20171227_0000 UTC	20171228_0000 UTC
20171229_0000 UTC	20171230_0000 UTC	20171231_0000 UTC

2017-11←  2017-12 looping  →2018-01