- 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 the temporary enchant of your main-hand weapon, or off-hand weapon when Off Hand is ticked, compared with the number of seconds you set. A weapon with no temporary enchant does not match.
Why you might use it
Compares the seconds left on your weapon's temporary enchant, so you can refresh a poison, oil or imbue before it expires, ideally between pulls rather than mid-fight. With no enchant on the weapon the condition is false whatever the operator. See also Weapon Enchant Present and Weapon Enchant Stacks.
Example
the time remaining on your main hand weapon buff is less than 300 seconds
Settings
What each setting in the condition editor means, from the game's own help.
Off Hand - Should this condition affect your main or off-hand weapon. If this is checked, it will affect your off-hand weapon, otherwise it will affect your main-hand (or two-handed) weapon.
Operator - How to compare Weapon Enchant Time Remaining with the Seconds value. This comparison uses basic mathematical comparison operations.
Seconds - The amount of time (in seconds) your weapon buff has left before it expires. If there is no buff on your weapon, this condition will not be successful (regardless of the Operator used.)