All the time—
1. through the whole period; continuously.
- Sue said she knew it all the time.
2. very often; many times.
- Ruth talks about her trip to Europe all the time.
3. essentially; first and last.
- You probably are a politician all the time, which is why you never get to behave badly.
All the while— = all the time 1.
- Mary went to college in her home town, and lived at home all the while.
All hours—very late or very early hours.
- It is dark: it must be all hours.