# date > Set or display the system date. > More information: . - Display the current date using the default locale's format: `date +%c` - Display the current date in UTC, using the ISO 8601 format: `date -u +%Y-%m-%dT%H:%M:%S%Z` - Display the current date as a Unix timestamp (seconds since the Unix epoch): `date +%s` - Convert a date specified as a Unix timestamp to the default format: `date -d @{{1473305798}}` - Convert a given date to the Unix timestamp format: `date -d "{{2018-09-01 00:00}}" +%s --utc` - Display the current date using the RFC-3339 format (`YYYY-MM-DD hh:mm:ss TZ`): `date --rfc-3339=s` - Set the current date using the format `MMDDhhmmYYYY.ss` (`YYYY` and `.ss` are optional): `date {{093023592021.59}}` - Display the current ISO week number: `date +%V`