Enter time values directly in cells using formats like `1:30` or `2:15 PM`
Use `=A1+B1` to add two time values
Format the result cell as Time or Custom with `[h]:mm` for totals over 24 hours
Use `=SUM(A1:A10)` to add a range of time values
If adding hours and minutes as text, convert them to time values first
To add a specific time amount, use formulas like `=A1+TIME(2,30,0)`
To add minutes, divide by 1440 and use `=A1+(30/1440)`
To add hours, divide by 24 and use `=A1+(2/24)`
Use AutoSum to quickly total time entries in a column
Ensure cells are formatted consistently before and after adding time