What problem are you trying to solve?

@Timeout(10000) is most likely an error since the default timeout unit is SECONDS.

Describe the solution you'd like

There are two possibilities:
a) rewrite @Timeout(10000) => @Timeout(value = 167, unit = TimeUnit.MINUTES). This preserves semantics, and the users will probably realize they do not mean MINUTES.
@Timeout(1000) could probably be rewritten to @Timeout(value = 17, unit = TimeUnit.MINUTES).

b) Rewrite @Timeout(10000) => @Timeout(10). This changes semantics, however, it is most likely something the user wanted in the first place.

I am not sure what is the overall design for OpenRewrite. I am leaning towards option a) which is "keep semantics, make the error much more visible for the users".