C++ timed events notifier output

On Monday 12:50: Title: Event1 Warning    Message: Event1 starts in 10 minutes ("loop" as argument)
On Monday 13:00: Title: Event1 Started    Message: Event1 has started. ("loop" as argument)
On Monday 14:00: Title: Event1 Ended    Message: Event1 has ended. ("loop" as argument)
On Monday between 12:50 and 13:00: Title: Event1 About to Start    Message: Event1 will start within 10 minutes. ("now" as argument)
On Monday between 13:00 and 14:00: Title: Event1 in Progress    Message: Event1 is in progress right now. ("now" as argument)