unikernel/duniverse/ptime/README.md

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+Ptime — POSIX time for OCaml
+============================
+
+Ptime has platform independent POSIX time support in pure OCaml. It
+provides a type to represent a well-defined range of POSIX timestamps
+with picosecond precision, conversion with date-time values,
+conversion with [RFC 3339 timestamps][rfc3339] and pretty printing to
+a human-readable, locale-independent representation.
+
+The additional Ptime_clock library provides access to a system POSIX
+clock and to the system's current time zone offset.
+
+Ptime is not a calendar library.
+
+Ptime has no dependency. Ptime_clock depends on your system library or
+JavaScript runtime system. Ptime and its libraries are distributed
+under the ISC license.
+
+[rfc3339]: http://tools.ietf.org/html/rfc3339
+
+Home page: <http://erratique.ch/software/ptime>  
+
+# Installation
+
+Ptime can be installed with `opam`:
+
+    opam install ptime
+
+If you don't use `opam` consult the [`opam`](opam) file for build
+instructions.
+
+# Documentation
+
+The documentation can be consulted [online] or via `odig doc mtime`.
+
+Questions are welcome but better asked on the [OCaml forum] than on
+the issue tracker.
+
+[online]: http://erratique.ch/software/ptime/doc/
+[OCaml forum]: https://discuss.ocaml.org/
+
+# Sample programs
+
+See [test/min_clock.ml](test/min_clock.ml).
+
+If you installed ptime with `opam` sample programs are located in
+the directory `opam var ptime:doc`.