ts
- print current timestamp
ts -1d12h
- print unix timestamp from 1 day and 12 hours ago
ts 0h0m0s
- print unix timestamp of beginning of current day
ts +1d 0h0m0s
- print timestamp of tomorrow's midnight
ts 12h30m
- print unix timestamp of 12:30:00 today
ts -t
- print current ISO 8601 UTC time
ts -t 1590000000
- print ISO 8601 UTC time from unix timestamp
ts -t 1590000000 +1d
- print ISO 8601 UTC time from 1 day after the unix timestamp