0)涉及的包
from from datetime import datetime, timedelta
1)时间字符串转datetime对象
date_str = "2020122008"
date_obj = datetime.strptime(date_str, "%Y%m%d%H")
2)datetime对象加一个时间差得到另外一个datetime对象
date_start = date_obj + timedelta(hours=int(value)-1)
date_end = date_obj + timedelta(hours=int(value))
3)datetime对象转时间字符串
result = date_start.strftime("%Y年%m月%d日%H时") + "-" + date_end.strftime("%Y年%m月%d日%H时")