planned
The earliest time to start executing a scheduled (i.e. within the target time period) kernel version upgrade task. The format is YYYY-MM-DDThh: mm: ssZ (UTC).
NOTE: The starting time range is any time point within the next 24 hours. For example, the current time is 2021-01-14T09:00:00Z, and the allowed start time range for filling in here is 2021-01-14T09:00:00Z~2021-01-15T09:00:00Z. If this parameter is left blank, the kernel version upgrade task will be executed immediately by default.