Re: [tz] How to compute the moment of the next DST change

Simon Perreault <simon.perreault@viagenie.ca> writes:

I want to write a cron job or similar that activates one week prior to daylight saving time changes. (Or, more generically, one week prior to any time jumps, for any reason, DST or else.)

If parsing zdump output is appropriate, that would do the trick. If you care about leap seconds as well, that may or may not be available depending on the system. On Red Hat systems, leap-second-aware zone files are stored in /usr/share/zoneinfo/right. Thanks, PM