A TOD clock value overflows after that date and time regardless of timezone; 
that's the date and time value represented by the highest unsigned value.  The 
usual convention is that the hardware clock is set to UTC.  However, local 
times represented in TOD format will of course overflow at the same clock value 
in local time, which may be before or after that time in UTC.

Jonathan Scott

-----Original Message-----
From: IBM Mainframe Assembler List <ASSEMBLER-LIST@LISTSERV.UGA.EDU> On Behalf 
Of Paul Gilmartin
...
     The z/TPF time-of-day (TOD) clock will overflow
     on 17 September 2042 at 23:53:47.
All that precision and no timezone identified.  Submitted Feedback.
...

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