When I insert a time field from insert>text>insert date and time in Word 365, although I check "update automatically", the inserted time filed does not update. how can I fix it?
Update automatically does not mean that it will act like a clock. Rather, when something causes the fields in the document to be updated, by re-opening a closed document, or printing, the date\time displayed by the field will be updated to the current time, rather than continuing to display the date\time that was current when the field was inserted.