FULL PRODUCT VERSION :
java version "1.8.0_101"
Java(TM) SE Runtime Environment (build 1.8.0_101-b13)
Java HotSpot(TM) Client VM (build 25.101-b13, mixed mode)

FULL OS VERSION :
Microsoft Windows [Version 6.1.7601]
* Windows 7 Japanese

A DESCRIPTION OF THE PROBLEM :
With the below environment and test cases,
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- OS : Windows 7 (Japanese)
- JDK : JDK 8u101(lastest JDK as of now).
- Monitoring application : for example, Java2D demo jar(which is included in JDK demo and sample files) in local
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After I completed JFR recording via GUI with default setting and recording time = 1 min, when I opened the recorded jfr, Interval time of JFR screen shows 1 min 18s! (additional 18 secs are added).
If I try recording time = 2 min, it showed 2 min 37s.

This issue does not happen in all the PCs but for some PCS, this happens.

* I tried the below but no success.
 - Re-installation of JDK while removing JFR related files (.jfr folder under user home, - lib/missioncontrol folder under JDK)
 - Tried 32 bit, 64 bit
 - Tried English UI and Japanese UI

THE PROBLEM WAS REPRODUCIBLE WITH -Xint FLAG: Did not try

THE PROBLEM WAS REPRODUCIBLE WITH -server FLAG: Did not try

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
* This only happens for some Windows 7 (Japanese - Not sure whether this is relevant) PCs.
And this happens always for those PCs.

Steps :
1. Run some Java demo files(like Java 2D Demo or Font 2D Test etc) with JFR option parameters (-XX:+UnlockCommercialFeatures -XX:+FlightRecorder)
2. Run jmc and set Recording time : 1 min
3. After recording, in JMC screen, Interval time shows 1 min 18s (unnecessary additional 18s).
* Similar issue happens when I set 2 min => Interval shows 2 min 37s etc


EXPECTED VERSUS ACTUAL BEHAVIOR :
In other environment (other PCs, Windows 2012 server etc), interval time correctly shows 1 min when we set Recording time : 1 min.
ERROR MESSAGES/STACK TRACES THAT OCCUR :
No errors. When I run jmc with Debug mode, it shows no error.

REPRODUCIBILITY :
This bug can be reproduced always.

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This can be reproduced Java demo and sample files like Java 2D Demo or Font 2D Test.
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CUSTOMER SUBMITTED WORKAROUND :
This only happens for some Windows 7 PCs.