Date time simplicity gotten out of hand

Hey, I thought this would be simple and just a few mins of programming but along the way...i have managed to confuse myself ;-D I have 2 field in my table users_online: present_date_time datetime expires_in datetime for present_date_time I am using now() to insert but for expires_in I need to have it now()+5 mins I was screwing around with now()+ X but thats getting me some weird results if its the end of the hour or day... Please help. Thanks, Ryan -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.308 / Virus Database: 266.9.5 - Release Date: 4/7/2005