Manual:$wgParserCacheExpireTime

Parser Cache: $wgParserCacheExpireTime
Expiration time (in seconds) of cached parser information
Introduced in version:	1.6.0 (r12542)
Removed in version:	still in use
Allowed values:	Unspecified
Default value:	86400
Other settings: Alphabetical | By function

Details

Expiration time (in seconds) of cached parser information. Defaults to 24 hours.