Castle Rock to Tokyo Time Difference
Tokyo is 15 hours ahead of Castle Rock
24-Hour Comparison
Business hours Extended Off hours
Castle Rock
02p
03p
04p
05p
06p
07p
08p
09p
10p
11p
12a
01a
02a
03a
04a
05a
06a
07a
08a
09a
10a
11a
12p
01p
Tokyo
05a
06a
07a
08a
09a
10a
11a
12p
01p
02p
03p
04p
05p
06p
07p
08p
09p
10p
11p
12a
01a
02a
03a
04a
Each column is the same moment in both cities, starting from right now and rolling forward 24 hours — daylight saving is already accounted for.
Best Time to Call
On a typical weekday (Monday–Friday).
Castle Rock and Tokyo have little to no overlap in typical business hours (9 AM–5 PM) — an early morning or evening call works best for one side.
Frequently Asked Questions
- What is the time difference between Castle Rock and Tokyo?
- Tokyo is 15 hours ahead of Castle Rock. Castle Rock is currently UTC-6 and Tokyo is UTC+9.
- Is Tokyo ahead of or behind Castle Rock?
- Tokyo is ahead of Castle Rock.
- What is the best time to call Tokyo from Castle Rock?
- Castle Rock and Tokyo have little to no overlap in typical business hours (9 AM–5 PM), even on a weekday — an early morning or evening call works best for one side.
- Does the time difference between Castle Rock and Tokyo change during the year?
- Yes. Castle Rock and Tokyo don't switch to daylight saving time on the same schedule, so the offset shifts by up to an hour for part of the year.