- Not available on that edition (the reason is in the tooltip)
- Depends on the setting, your class or another addon (details in the tooltip)
What it does
Checks how many seconds are left on your totem in the element slot you choose, compared with the number of seconds you set. An empty or expired slot does not match.
Why you might use it
For Shamans, compares the seconds left on the totem in one element slot, so you can refresh a totem just before it runs out, such as recasting a Fire totem with less than 3 seconds left. An absent or expired totem does not match. On Retail and WoW Forever the game can hide totem slots, and the condition is unavailable then. See also Totem Present and Specific Totem Time Remaining.
Example
you have a Fire totem active where the remaining time is less than 3 seconds
Settings
What each setting in the condition editor means, from the game's own help.
Totem - The elemental slot to check: Fire, Earth, Water or Air. Empty, zero-duration and expired totems do not match.
Operator - How to compare Totem Time Remaining with the Seconds value. This comparison uses basic mathematical comparison operations.
Seconds - Compare the active totem's remaining seconds with this amount. An absent or expired totem does not match; unavailable observations stay unavailable.