1Usage: dateconv [OPTION]... [DATE/TIME]...
2
3Convert DATE/TIMEs between calendrical systems.
4If DATE/TIME is omitted date/times are read from stdin.
5
6DATE/TIME can also be one of the following specials
7  - `now'           interpreted as the current (UTC) time stamp
8  - `time'          the time part of the current (UTC) time stamp
9  - `today'         the current date (according to UTC)
10  - `tomo[rrow]'    tomorrow's date (according to UTC)
11  - `y[ester]day'   yesterday's date (according to UTC)
12
13
14  -h, --help                 Print help and exit
15  -V, --version              Print version and exit
16  -q, --quiet                Suppress message about date/time and duration
17                             parser errors and fix-ups.
18                             The default is to print a warning or the
19                             fixed up value and return error code 2.
20  -f, --format=STRING        Output format.  This can either be a specifier
21                               string (similar to strftime()'s FMT) or the name
22                               of a calendar.
23  -i, --input-format=STRING...  Input format, can be used multiple times.
24                               Each date/time will be passed to the input
25                               format parsers in the order they are given, if a
26                               date/time can be read successfully with a given
27                               input format specifier string, that value will
28                               be used.
29  -b, --base=DT              For underspecified input use DT as a fallback to
30                             fill in missing fields.  Also used for ambiguous
31                             format specifiers to position their range on the
32                             absolute time line.
33                             Must be a date/time in ISO8601 format.
34                             If omitted defaults to the current date/time.
35  -e, --backslash-escapes    Enable interpretation of backslash escapes in the
36                               output and input format specifier strings.
37  -S, --sed-mode             Copy parts from the input before and after a
38                               matching date/time.
39                               Note that all occurrences of date/times within a
40                               line will be processed.
41      --locale=LOCALE        Format results according to LOCALE, this would only
42                             affect month and weekday names.
43      --from-locale=LOCALE   Interpret dates on stdin or the command line as
44                             coming from the locale LOCALE, this would only
45                             affect month and weekday names as input formats
46                             have to be specified explicitly.
47      --from-zone=ZONE       Interpret dates on stdin or the command line as
48                               coming from the time zone ZONE.
49  -z, --zone=ZONE            Convert dates printed on stdout to time zone ZONE,
50                               default: UTC.
51