1tzselect(8) System Manager's Manual tzselect(8)
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6 tzselect - select a timezone
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9 tzselect [ -c coord ] [ -n limit ] [ --help ] [ --version ]
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12 The tzselect program asks the user for information about the current
13 location, and outputs the resulting timezone to standard output. The
14 output is suitable as a value for the TZ environment variable.
15 All interaction with the user is done via standard input and standard
17 error.
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20 -c coord
21 Instead of asking for continent and then country and then city,
22 ask for selection from time zones whose largest cities are clos‐
23 est to the location with geographical coordinates coord. Use
24 ISO 6709 notation for coord, that is, a latitude immediately
25 followed by a longitude. The latitude and longitude should be
26 signed integers followed by an optional decimal point and frac‐
27 tion: positive numbers represent north and east, negative south
28 and west. Latitudes with two and longitudes with three integer
29 digits are treated as degrees; latitudes with four or six and
30 longitudes with five or seven integer digits are treated as
31 DDMM, DDDMM, DDMMSS, or DDDMMSS representing DD or DDD degrees,
32 MM minutes, and zero or SS seconds, with any trailing fractions
33 represent fractional minutes or (if SS is present) seconds. The
34 decimal point is that of the current locale. For example, in
35 the (default) C locale, -c +40.689-074.045 specifies 40.689 de‐
36 grees N, 74.045 degrees W, -c +4041.4-07402.7 specifies 40 de‐
37 grees 41.4 minutes N, 74 degrees 2.7 minutes W, and
38 -c +404121-0740240 specifies 40 degrees 41 minutes 21 seconds N,
39 74 degrees 2 minutes 40 seconds W. If coord is not one of the
40 documented forms, the resulting behavior is unspecified.
41 -n limit
43 When -c is used, display the closest limit locations (default
44 10).
45 --help Output help information and exit.
47 --version
49 Output version information and exit.
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52 AWK Name of a Posix-compliant awk program (default: awk).
53 TZDIR Name of the directory containing timezone data files (default:
55 /usr/share/zoneinfo).
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58 TZDIR/iso3166.tab
59 Table of ISO 3166 2-letter country codes and country names.
60 TZDIR/zone1970.tab
62 Table of country codes, latitude and longitude, timezones, and
63 descriptive comments.
64 TZDIR/TZ
66 Timezone data file for timezone TZ.
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69 The exit status is zero if a timezone was successfully obtained from
70 the user, nonzero otherwise.
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73 newctime(3), tzfile(5), zdump(8), zic(8)
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76 Applications should not assume that tzselect's output matches the
77 user's political preferences.
78Time Zone Database tzselect(8)