Issue Summary

While adding value in the Time Spent/Time Remaining field  as 4.1h or 8.2h for an issue the error "Invalid time duration entered" is displayed.

In my testing, I found certain values work and certain values don't, so between 8.0h and 8.9h  (one decimal) place everything works except 8.2d and 8.7d. But I haven't spotted any pattern for it. Although 8.2d fails, 4.2d works. Similarly, 8.1d works, but 4.1d fails.

Time value	Works?
8.1d
8.2d
8.3d
8.4d
8.5d
8.6d
8.7d
8.8d
8.9d
4.1d
4.2d
4.7d

Steps to Reproduce

1. Go to Settings > Issue > Time Tracking, set the 'Default unit for time tracking' to Minute or Hour(which default setting).

2. Click Create button, and add the Log work >Time Spent

3. Add the time as 4.1d or 8.2d or 8.7d to display the error

4. Click Create to create the issue. 

Expected Results

No errors and time to be set as 4.1d, 8.2d or 8.7d

Actual Results

We get an error message "Invalid time duration entered"

Workaround

From Settings > Issue > Time Tracking, change the 'Default unit for time tracking' to Day

or Enter time in Hours or minutes (eg. 1w 3d 1h 36m)