For the filter fields such as start_time__lt, stop_time__gte the API at https://atlas.ripe.net/docs/rest/ claims that a unix timestamp should be valid for these but I am seeing the error message "'1389655981' value has an invalid format. It must be in YYYY-MM-DD HH:MM[:ss[.uuuuuu]][TZ] format."

I was trying with this query:

https://atlas.ripe.net/api/v1/measurement/?limit=20&type=2&format=txt&use_iso_time=false&start_time__gte=1389619981&stop_time__lte=1389655981

Thanks,

Matt