, nutrition. It could work as time converter that converts hours to minutes, minutes. You can get number of hours, minutes and seconds (3 hours and 20 minutes;. After entering a time in 24- hour format, this calculator lets you add and subtract a period to give a new time, also in 24 hour format. The 24 hour time format. This monthly financial report format calculator tool will enable you to add or subtract seconds, minutes, hours, days, weeks, months and years from a given date. Using 24 hours format, add or subtract the time in a day, and returns the result time in a day. Calculator: Add to or subtract from a date and time Time Add Subtract Hours Minutes - TimeBie For Example: at 08:22:43, adds 2hr 41min 23sec is 11:04:06. The number of hours and minutes between the two selected times will appear. NaN not a number. To clear the entry boxes click Reset. Enter hours and minutes. From: Hours : Minutes : To: Hours : Minutes : From a selected 24 hour clock time, add or subtract hours and/or minutes. Enter later or end time information at "To. It could also translate time given in decimal format (c, c) to regular time format (hh:mm:ss) and vice versa.