var days = [
'2018/12/31', 
'2019/01/01',
'2019/08/02',
'2019/08/09',
'2019/12/09',
'2019/12/12',
'2019/12/18',
'2019/12/26',
'2020/01/07',
'2020/01/14',
'2020/01/21',
'2020/01/28',
]