How long does it take before your login times out???

How long does it take before your login times out???

Just tried to post a new topic and despite having written a lot and added a photo, when I went to post it, I got booted to the login page. For future reference, could someone tell me the time frames I need to work within, when posting???

Thanks

Sorry superroo79. I wrote the website myself. There's a 20 minute session timeout. I did put protection against this in other parts of the website but I added forums later on and didn't protect against session timeout on new forum posts. I'll get that done soon. Sorry you lost what you typed.