<p><span style="color: rgb(0,0,0);background-color: rgb(255,255,255);font-size: 16px;font-family: arial, helvetica, sans-serif;">Use this calculator to add or subtract time (days, hours, minutes, seconds) from a starting time and date. The result will be the new time and date based on the subtracted or added period of time. To calculate the amount of time (days, hours, minutes, seconds) between times on two different dates, use th</span>&nbsp;</p>
