bug#31113: mcron ERROR: In procedure mktime:

[George myglc2 Clemmer]

Hello,

somewhere between March ~17 (commit be5ed1421 gnu: Add terraform-docs.)
and April ~5 (commit cfb55cfc4 gnu: Add java-native-access-platform.)
mcron-service stopped working and started throwing errors like ...

#+BEGIN_EXAMPLE
ERROR: In procedure mktime:
Wrong type (expecting exact integer): 45.0
Backtrace:
           4 (primitive-load "/gnu/store/422ngw911hz62510b33wdvrp1a6?")
   In mcron/base.scm:
      103:25  3 (add-job #<procedure 847880 at mcron/job-specifier.scm?> ?)
   In mcron/job-specifier.scm:
      251:32  2 (_ 1523292689)
   In mcron/vixie-time.scm:
      381:15  1 (_ _)
   In unknown file:
              0 (mktime #(0 45.0 +inf.0 9 3 118 1 98 1 14400 "EDT") #<u?>)
ERROR: In procedure mktime:
...
#+END_EXAMPLE

Please see system config attached (my /etc/gen/x/010/sys.scm)

TIA - George