USAGE: anytime <time>
  writes <time> in several formats to stdout.
  First <time> is converted to seconds since 00:00:00 GMT, Januari 1, 1970.
  <time> can than be interpreted as local time or time for a specific timezone.
  Local time (CET, CEST) is used. Timezone -3600 DTS=1.
USAGE: anytime -<time>
  writes only age of <time> in hours to stdout. On error: "0.00000".
USAGE: anytime <32000000 .. 2147483647>[.<fraction of second>]
  interpret as decimal seconds since 00:00:00 GMT, Januari 1, 1970.
  writes <Day Mnd dd HH:MM:SS YYYY> <seconds since begin of day>[.<fraction>]
USAGE: anytime s[how]
  shows current timesetting and timezone.
USAGE: anytime "#"<comment>
  writes #<comment> to stdout.

<time> can be specified numerically:
    t[<white>]<decimal seconds since 00:00:00 GMT, January 1, 1970>
    d[<white>]<days since 00:00:00 GMT, January 1, 1970>[d]<sep><seconds>
    x[<white>]<hexadecimal seconds since 00:00:00 GMT, January 1, 1970>
    j[<white>]<julian day>[.<fraction of day>][[d]<white><add days>][d]
or related to local time:
    <dd><mm><yy[-1900]>[<sep><hh>[:<mm>[:<ss>]]]
    <yyyy>-<mm>-<dd>[<sep><hh>:<mm>[:<ss>]]
    r[<text>]<yyyy><mm><dd>[<hh>[<mm>]]
    y[<text>]<day of year><sep><yy[-1900]>[<sep><hh>[:<mm>[:<ss>]]]
finally <time> can be related to local time:
    n[ow][<text>][[-]<days>[.<fraction of day>][d]
<sep> can be one or more:
    <space>, "." or <TAB>.
<text> can be one or more:
    <space>, "./A-Z\_a-z" or <TAB>.
<white> can be one or more:
    <space> or <TAB>.
VERSION: Jun 24 2014

Copyright (C) 2014 by Harm J. Schoonhoven

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