12 hours from now
Twelve hours is exactly half a day, so the clock hands land on the mirror of now.
What time will it be 12 hours from now?
To find what time it will be 12 hours from now, add 12 hours to the current time. Right now the calculator above shows the live answer for your own time zone. As a worked example, if the time were 3:00 PM, then 12 hours later would be 3:00 AM (the next day).
How the calculation works
Twelve hours is exactly half a day, so the clock hands land on the mirror of now. Timesabout adds 12 hours to the exact moment you load the page, using your device's own time zone, then rolls the date forward if the total passes midnight. Because it recalculates every second, the answer stays correct the whole time the page is open.
Related pages
Need a different span? Jump to a nearby value below, switch to minutes from now, or look backwards with 12 hours ago.
Other common lookups
Frequently asked
What time will it be 12 hours from now?
It is the current time plus 12 hours. The calculator on this page reads your device clock and shows the exact time and date live, adjusting across midnight when needed.
How do I calculate 12 hours from now by hand?
Take the current time and add 12 to the hours. If the total passes 12, wrap around the clock and move to the next day if it passes midnight. For example, 3:00 PM plus 12 hours is 3:00 AM.
Why does 12 hours from now flip AM and PM?
Twelve hours is half of a 24-hour day, so the hour stays the same but the AM/PM marker swaps.