Hello, I would like to ask someone to test fast-logger on Windows before I will release new version: https://github.com/kazu-yamamoto/logger In the hackathon in the ICFP week last year, I implemented the unix-time package which makes use of C libraries. Today, I compared three packages: http-date, unix-time, and time: https://gist.github.com/3272030 The result is as follows: http-date: 359ns unix-time: 2,071ns time: 43,636ns http-date can produce RFC 2616 date style (GMT) only. unix-time can produce zoned date. fast-logger used the time library to format zoned date. Since unix-time is much faster than time, I modified fast-logger to use unix-time on Unix. On Windows, it still uses the time library. I have tested the new fast-logger on Unix. If someone will kindly test it on Windows, it would be appreciated. Thanks in advance. --Kazu