National Centers for Environmental Information / National Operational Model Archive and Distribution System Catalog https://www.ncei.noaa.gov/thredds/catalog/model-gfs-004-files/202103/20210323/catalog.html

Dataset Size Last Modified
     Folder  20210323   --
         GFS Grid 4 2021-03-23 18:00 UTC fct:006.grb2 162.7 Mbytes 2021-03-24T08:40:29.480Z
         GFS Grid 4 2021-03-23 18:00 UTC fct:003.grb2 161.8 Mbytes 2021-03-24T08:40:25.682Z
         GFS Grid 4 2021-03-23 18:00 UTC fct:000.grb2 151.7 Mbytes 2021-03-24T08:40:29.302Z
         GFS Grid 4 2021-03-23 12:00 UTC fct:006.grb2 162.7 Mbytes 2021-03-23T20:03:38.350Z
         GFS Grid 4 2021-03-23 12:00 UTC fct:003.grb2 161.8 Mbytes 2021-03-23T20:03:38.050Z
         GFS Grid 4 2021-03-23 12:00 UTC fct:000.grb2 151.4 Mbytes 2021-03-23T20:03:38.814Z
         GFS Grid 4 2021-03-23 06:00 UTC fct:006.grb2 163.0 Mbytes 2021-03-23T20:03:49.793Z
         GFS Grid 4 2021-03-23 06:00 UTC fct:003.grb2 161.6 Mbytes 2021-03-23T20:03:57.017Z
         GFS Grid 4 2021-03-23 06:00 UTC fct:000.grb2 150.4 Mbytes 2021-03-23T20:03:51.241Z
         GFS Grid 4 2021-03-23 00:00 UTC fct:006.grb2 161.8 Mbytes 2021-03-23T20:03:54.160Z
         GFS Grid 4 2021-03-23 00:00 UTC fct:003.grb2 160.8 Mbytes 2021-03-23T20:03:38.277Z
         GFS Grid 4 2021-03-23 00:00 UTC fct:000.grb2 149.9 Mbytes 2021-03-23T20:03:37.266Z

NCEI-NC THREDDS Server at NCEI see Info
Documentation