Using TIME_HOUR and TIME_MIN for htaccess RewriteCondJanuary 6th, 2007
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If you want to redirect to a different version of a file based on the time, this code is for you! Please read: Serve Alternate Content based on Time
Many webmasters use CGI scripts to do simple redirects based on the time of day. CGI incurs alot of overhead when used with SSI includes, even more so if the page is going to be called often.
Mod_rewrite provides system-variables for exactly this purpose. Using the lexicographic comparisons, we can do time-dependant redirects:
RewriteEngine On
RewriteBase /
RewriteCond %{TIME_HOUR}%{TIME_MIN} >0700
RewriteCond %{TIME_HOUR}%{TIME_MIN} <1900
RewriteRule ^index\.html$ /index.day.html
RewriteRule ^index\.html$ /index.night.html
This provides content for index.html so that requests done between 7am to 7pm are considered “day”, and therefore get redirected to index.day.html, otherwise the page index.night.html is displayed.
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time-dependant is spelled wrong. I looked for an “Edit” button but found none. Thanks for the hint on time-conditional rewrites.
That should be “>19 [OR]“, else /night/ will never get used, because it’s impossible for a TIME_HOUR to be BOTH greater than 19 AND less than 02.