Circumnavigating Time

I see the light, but not the day...night looks just the same.
Nothing but time to do                in here it rolls back again.
Only wait is my time                      here it stays the same.
So I walk this floor                          and climb these walls.
Every day to night                            every night to day.
Waiting once again                          for yesterday to begin.
When will time come                      when will that day be?
When will the day come              when time sets me free?
Always the same, not seeing the day but seeing the light.