1.\" 2.\" The contents of this file are subject to the terms of the 3.\" Common Development and Distribution License (the "License"). 4.\" You may not use this file except in compliance with the License. 5.\" 6.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 7.\" or http://www.opensolaris.org/os/licensing. 8.\" See the License for the specific language governing permissions 9.\" and limitations under the License. 10.\" 11.\" When distributing Covered Code, include this CDDL HEADER in each 12.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE. 13.\" If applicable, add the following below this CDDL HEADER, with the 14.\" fields enclosed by brackets "[]" replaced with your own identifying 15.\" information: Portions Copyright [yyyy] [name of copyright owner] 16.\" 17.\" 18.\" Copyright (c) 2009, Sun Microsystems, Inc. All Rights Reserved 19.\" Copyright 2020 Joyent, Inc. 20.\" 21.Dd February 27, 2020 22.Dt TZRELOAD 8 23.Os 24.Sh NAME 25.Nm tzreload 26.Nd notify timezone update 27.Sh SYNOPSIS 28.Nm Op Fl a 29.Sh DESCRIPTION 30The 31.Nm 32command triggers processes to reread timezone information. 33The timezone information is cached in each process. 34In response to a 35.Nm 36command, this cache is updated on the next call to 37.Xr ctime 3C 38and 39.Xr mktime 3C 40by each process. 41By default, 42.Nm 43only triggers this update for the current zone. 44.Pp 45In addition to updating processes, the 46.Nm 47command also notifies 48.Xr cron 8 49to reinitialize the job scheduler with the new timezone information. 50.Sh OPTIONS 51The following options are supported: 52.Bl -tag -width Ds 53.It Fl a 54Update processes in all zones. 55.El 56.Sh FILES 57.Bl -tag -width Ds 58.It Pa /usr/share/lib/zoneinfo 59Standard zone information directory. 60.El 61.Sh INTERFACE STABILITY 62.Sy Committed 63.Sh SEE ALSO 64.Xr ctime 3C , 65.Xr mktime 3C , 66.Xr attributes 7 , 67.Xr cron 8 , 68.Xr zdump 8 , 69.Xr zic 8 , 70.Xr zoneadm 8 71.Sh NOTES 72Although 73.Nm 74reinitializes 75.Xr cron 8 , 76applications that are affected by timezone changes still need to be restarted or 77reinitialized if they do not reread the new timezone information before timezone 78changes take place. 79