OpenNTPD

The MirOS Project   (Compare Project)

License: apache, artistic_gpl, Beerware, bsd_2clause_ish, BSD-3-Clause, BSD-3-Clause, bsd, gpl, MirOS, mit, XFree86_Project_Licence_version_1_1, zlib_libpng

NTPsec   (Compare Project)

Mostly written in C

License: BSD-2-Clause, NTP

OpenBSD   (Compare Project)

Mostly written in C

License: isc

chrony   (Compare Project)

Mostly written in C

License: GNU_General_Public_License_v2_0_only

NTPSec Web pages   (Compare Project)

Mostly written in Python

License: CC_AttributionNonCommercialShareAlike_3_0

NTP Pool   (Compare Project)

Mostly written in Perl

License: apache_2

pkgsrc: The NetBSD Packages Collection   (Compare Project)

Mostly written in C

License: BSD-3-Clause

mksh   (Compare Project)

Mostly written in C

License: MirOS

The MirPorts Framework   (Compare Project)

License: MirOS

ntpd_driver   (Compare Project)

Mostly written in C++

License: BSD_License