100 REM "A little clock in BASIC"
120 @O=2: CLS
200 REM "Display the clock and wait for input"
210 @X=0: @Y=0
220 PRINT @T$(1,8);"  ": PRINT @T$(10);"    ";
230 GET &2, C: IF C=10 THEN GOSUB 3000
240 GOTO 210
3000 REM "Input a time and date on line 2"
3010 @X=0: @Y=1: I=1: SET 13,1
3020 DELAY 200
3030 RESTORE 1+(I-1)*4: READ D, N$, L, H: N=@T(D)
3040 PUT 27,"j", 27, "l": PRINT N$;N;: PUT 27, "k"
3060 GET &2, C: IF C=0 THEN 3060
3070 IF C="1" AND I>1 THEN I=I-1
3080 IF C="2" AND I<6 THEN I=I+1
3090 IF C="3" AND N<H THEN N=N+1
3100 IF C="4" AND N>L THEN N=N-1
3120 IF C=10 THEN SET 13,0: GET &2, C: RETURN
3130 @T(D)=N
3140 GOTO 3020
3600 DATA 2, "Hour :", 0, 24, 1, "Minute: ", 0, 59, 0, "Second: ", 0, 59
3610 DATA 4, "Day: ", 1, 31, 5, "Month: ", 1, 12, 6, "Year: ", 1970, 2100