Stanford Research Institute (SRI) International, Augmentation Research Center (ARC) I have occasionally found myself in a situatuation in Which I see a message from site X on my IMP teletype, but I don't know the time and date of the message. I find this annoying, since a response to it may be in order if it is (say) less than an hour old, but not if it is several hours old. The situation is not improved by the existence of sites that now span all time zones of the U.S. and do not have direct voice connection. It is requested that everyone tag their IMP to IMP teletype messages that cause no response at the receiving IMP. The transmitting IMP site should use 24 hour time and include the time zone designation.