Sometimes, time stamps appear on footage taken from security cameras. When this happens, several things that would be on real security footage timestamps are frequently missing from the televised vs.:

1. The date the footage was taken. If the footage was taken at "12:00 PM" but not on any particular day, then either info has been edited out or someone is taping over tapes too frequently. In fiction, it may be omitted in an attempt to avoid literally dating the work.
2. The camera location may not appear. Admittedly, when it does appear, it is likely to be in a form that would not be understood by laypeople. But if the security camera is located in a place with more than one of them, its tape should say which one.
3. The time may be given in hours and minutes, but not seconds. Since the seconds aren't that much more trouble and help pinpoint spots on the tape, real displays normally include them.

This happens far more on British TV than in the US. American "security camera footage" tends to have either all the info (possibly pixellated, but there) or none of it. "None" is a legitimate display option, but it removes some of the cues that it is a security camera.

The is applied in a different manner when referring to a television series. In this case (and especially in the Star Trek franchise), characters In-Universe can tell on careful inspection that it's dodgy. It's usually used to help the main characters detect forged log entries, forged security camera recordings, forged communications from (or relating to) a missing third party, etc.

If the time stamp displays SMPTE time code (frames 00-29 are displayed after the seconds) this is a variant of Magical Security Cam!

Music

• The YouTube music video for MILKBLOOD - SICK OF BEING HONEST features two versions of this back to back. It features a timestamp that is clearly being sped up, but with normal speed dance moves and car movement in the shot. Immediately afterwards a security camera mounted on a SAAB car in 1999 pulls up, and at most it may have the hour time stamped, along with a dodgy kilometers per hour stamp when the car is nearly stopped.

Video Games

• The Five Night's at Freddy's games that take place at a Fazbear location rely on this trope. You get no date, just the hours ticking to 6 AM. At most you may have names for the cameras.

Western Animation

• Batman: The Animated Series features this problem in "Heart of Ice": when Batman finds footage of Mr. Freeze's origin. Scientist Victor Fries was recording a science log for his research, but doesn't mention a date or time as he explains how his cryogenic technology will allow his wife Nora time to cure her. Batman is able to figure out by logic, however, that this incident happened before Ferris Boyle received his Humanitarian of the Year award since Boyle mentioned an employee was stealing his equipment for a personal project.
• The Simpsons Alternate Continuity Treehouse of Horror episode "Ei8ht" features this when Lisa, in the killer's lair, finds a camera setup in her old bedroom. There is no time stamp listed for when she realizes that she is the killer, with a Split Personality, after watching herself murder Nelson.