Timewarrior
Usefull commands
Modify starting time (backdating)
# Move start time
timew move @1 15:00 [:adjust]
Backtrack time periods
timew track YYYY-MM_DDTHH:mm - YYYY-MM-DDTHH-mm +<tag>
# Move start time
timew move @1 15:00 [:adjust]
timew track YYYY-MM_DDTHH:mm - YYYY-MM-DDTHH-mm +<tag>