In a dream minutes are usually referring to an amount of days. If you have to wait a certain about of minutes it usually reflects how many days you have to wait for an event, or a change to take place.
Awareness of yourself caring about how short a waiting experience will be.
Negatively, can reflect feelings about something you expect to happen shortly, but not be realistic.
Example: If a person or voice mentions waiting 5 in a dream this often reflects an event that will occur in 5 days.
Example 2: A man dreamed of being told to wait 15 . In waking life an important event occurred 2 weeks later.
Alternatively, could use the dream numerology system to symbolize what is happening to you during a fast paced experience. For example 6 may reflect something happening quickly perceived to be dangerous or evil.