Yes. It is possible. The sexagesimal base number is based on the number 60. This base number is used for time and angle measurement.
Time measures( 1 hour=60 minutes, 1 minute =60seconds) Casio scientific calculators can carry out time calculations as well as angle calculations .

Examples:
To convert the decimal value 2.258 to a sexagesimal value
Key Operation:
 [2] [.] [2] [5] [8] [=] [ °‘‘‘ ]
Displayed Result:  2° 15° 28.8°   (2 hours 15 minutes and 28.8 seconds)

Time calculation with sexagesimal values:
5 hours 34 minutes and 48 seconds are to be added to 8 hours 16 minutes and 51 seconds.
Key Operation:
 [5] [ °‘‘‘ ] [3] [4] [ °‘‘‘ ] [4] [8] [ °‘‘‘ ] [+] [8] [ °‘‘‘ ] [1] [6] [ °‘‘‘ ] [5] [1] [ °‘‘‘ ] [=]
Displayed Result:  13°51°39°  (13 hours 51 minutes and 39 seconds)

The result can be converted into decimal value.
Key Operation  [ °‘‘‘ ] 
Displayed Result:  13.86083333

During MathI/DecimalO and LineI/DecimalO calculations, the sexagesimal input results are displayed in decimal value form.
You can then press [ °‘‘‘ ] to convert to sexagesimal form.