2018-10←  2018-11 looping  →2018-12

20181101_0000 UTC	20181102_0000 UTC	20181103_0000 UTC	20181104_0000 UTC
20181105_0000 UTC	20181106_0000 UTC	20181107_0000 UTC	20181108_0000 UTC
20181109_0000 UTC	20181110_0000 UTC	20181111_0000 UTC	20181112_0000 UTC
20181113_0000 UTC	20181114_0000 UTC	20181115_0000 UTC	20181116_0000 UTC
20181117_0000 UTC	20181118_0000 UTC	20181119_0000 UTC	20181120_0000 UTC
20181121_0000 UTC	20181122_0000 UTC	20181123_0000 UTC	20181124_0000 UTC
20181125_0000 UTC	20181126_0000 UTC	20181127_0000 UTC	20181128_0000 UTC
20181129_0000 UTC	20181130_0000 UTC

2018-10←  2018-11 looping  →2018-12