Atari ST series Technical Reference Manual page 267

Tgetdate()
Gets current date according to GEMDOS.
C macro format
int date;
date = Tgetdate();
Machine language format
move.w #$2A, - (sp)
trap #1
addq.l #2,sp
Inputs
None
Results
D O date word
Interpretation of GEMDOS
Bit Number Description
0-4 Day
5-8 Month
9-15 Year - 1980
See also
Tsetdate(), Tgettime(), Tsettime()
Tgetdate
Get GEMDOS Date
A 16-bit code that specifies the GEMDOS date.
date:
Range
1-31
1-12
0-119
Opcode = 42 ($2A)
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