TIME$

　[Features]　To retrieve the current time.

　[Format]　

　[Explanation]

　[e.g.]
　　print time$
　　00:00:00

TIMER

　[Features]　To retrieve the timer from start.

　[Format]　

　[Explanation]

　[e.g.]
    10 timer=0
    20 for i=1 to 1000000
    30 next
    40 print timer

DATE$

　[Features]　To retrieve the current date.

　[Format]　

　[Explanation]

　[e.g.]
　　print date$
　　2017/01/01

DAY

　[Features]　To return the day of the week in specified date.

　[Format]　DAY(["xxxx/xx/xx"])

　[Explanation]
    The return value(Number)
     1.Sunday 2.Monday 3.Tuesday 4.Wednesday 5.Thursday 6.Friday 7.Saturday
    If date is omitted, the present day of the week will be returned.

　[e.g.]
    10 d=day("2000/01/01")
    20 a$=trim$(mid$("Sunday   Monday   Tuesday  WednesdayThursday Friday   Saturday ",(d-1)*9+1,9))
    30 print a$
　(Result)
    Saturday
    OK

PAUSE

　[Features]　Execution is stopped only for n/1000 second.

　[Format]　PAUSE n

　[Explanation]

　[e.g.]
    pause 2000

ERR

　[Features]　The error code which the error generated is held and returned.

　[Format]　

　[Explanation]

　[e.g.]

ERL

　[Features]　The line number which the error generated is held and returned.

　[Format]　

　[Explanation]

　[e.g.]

FRE

　[Features]　The memory size of Android system is acquired.

　[Format]　FRE(n)

　[Explanation]
    n=0 To return current empty memory size of Android.
    n=1 To return the model's all memory size.
    *It isn't a free area of BASIC.

　[e.g.]