I'm getting problems with the date opcode with Csound 5.19.

error: syntax error, unexpected T_IDENT, expecting T_OPCODE or ','
(token "date") line 672:
>>>itim     date <<<
Parsing failed due to invalid input!
Stopping on parser failure

And the offending code:

itim     date
Stim     dates     itim
Syear    strsub    Stim, 20, 24
Smonth   strsub    Stim, 4, 7
Sday     strsub    Stim, 8, 10
iday     strtod    Sday
Shor     strsub    Stim, 11, 13
Smin     strsub    Stim, 14, 16
Ssec     strsub    Stim, 17, 19

Are these opcodes not included in the standard build?