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The procedures described in this section convert times from one format to another.
Converts an argument in universal-time format to decoded-time format. The result is in the local time zone or UTC, respectively.
(pp (universal-time->local-decoded-time (get-universal-time))) -| #[decoded-time 21] -| (second 23) -| (minute 57) -| (hour 17) -| (day 29) -| (month 4) -| (year 1999) -| (day-of-week 3) -| (daylight-savings-time 1) -| (zone 5)
(pp (universal-time->global-decoded-time
(get-universal-time)))
-| #[decoded-time 22]
-| (second 27)
-| (minute 57)
-| (hour 21)
-| (day 29)
-| (month 4)
-| (year 1999)
-| (day-of-week 3)
-| (daylight-savings-time 0)
-| (zone 0)
Converts an argument in universal-time format to file-time format.
(universal-time->file-time (get-universal-time))
⇒ 925422988
Converts an argument in universal-time format to a time string. The result is in the local time zone or UTC, respectively.
(universal-time->local-time-string (get-universal-time))
⇒ "Thu, 29 Apr 1999 17:55:31 -0400"
(universal-time->global-time-string (get-universal-time))
⇒ "Thu, 29 Apr 1999 21:55:51 +0000"
Converts an argument in decoded-time format to universal-time format.
(decoded-time->universal-time (local-decoded-time))
⇒ 3134411942
(decoded-time->universal-time (global-decoded-time))
⇒ 3134411947
Converts an argument in decoded-time format to file-time format.
(decoded-time->file-time (local-decoded-time))
⇒ 925423191
(decoded-time->file-time (global-decoded-time))
⇒ 925423195
Convert an argument in decoded-time format to a time string.
(decoded-time->string (local-decoded-time))
⇒ "Thu, 29 Apr 1999 18:00:43 -0400"
(decoded-time->string (global-decoded-time))
⇒ "Thu, 29 Apr 1999 22:00:46 +0000"
Converts an argument in universal-time format to file-time format.
(file-time->universal-time (file-modification-time "/"))
⇒ 3133891907
Converts an argument in file-time format to decoded-time format. The result is in the local time zone or UTC, respectively.
(pp (file-time->local-decoded-time
(file-modification-time "/")))
-| #[decoded-time 26]
-| (second 47)
-| (minute 31)
-| (hour 17)
-| (day 23)
-| (month 4)
-| (year 1999)
-| (day-of-week 4)
-| (daylight-savings-time 1)
-| (zone 5)
(pp (file-time->global-decoded-time
(file-modification-time "/")))
-| #[decoded-time 27]
-| (second 47)
-| (minute 31)
-| (hour 21)
-| (day 23)
-| (month 4)
-| (year 1999)
-| (day-of-week 4)
-| (daylight-savings-time 0)
-| (zone 0)
Converts an argument in file-time format to a time string. The result is in the local time zone or UTC, respectively.
(file-time->local-time-string (file-modification-time "/"))
⇒ "Fri, 23 Apr 1999 17:31:47 -0400"
(file-time->global-time-string (file-modification-time "/"))
⇒ "Fri, 23 Apr 1999 21:31:47 +0000"
Converts a time-string argument to universal-time format.
(string->universal-time "Fri, 23 Apr 1999 21:31:47 +0000")
⇒ 3133888307
(string->universal-time "Fri, 23 Apr 1999 17:31:47 -0400")
⇒ 3133888307
Converts a time-string argument to decoded-time format.
(pp (string->decoded-time "Fri, 23 Apr 1999 17:31:47 -0400")) -| #[decoded-time 30] -| (second 47) -| (minute 31) -| (hour 17) -| (day 23) -| (month 4) -| (year 1999) -| (day-of-week 4) -| (daylight-savings-time 0) -| (zone 4)
Converts a time-string argument to file-time format.
(string->file-time "Fri, 23 Apr 1999 17:31:47 -0400")
⇒ 924899507
Next: External Representation of Time, Previous: File Time, Up: Date and Time [Contents][Index]