Para openSUSE Tumbleweed execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:markusd:samba:samba-fresh-ad/openSUSE_Tumbleweed/home:markusd:samba:samba-fresh-ad.repo
zypper refresh
zypper install chrony
Para 16.0 execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:markusd:samba:samba-fresh-ad/16.0/home:markusd:samba:samba-fresh-ad.repo
zypper refresh
zypper install chrony
Para 15.6 execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:markusd:samba:samba-fresh-ad/15.6/home:markusd:samba:samba-fresh-ad.repo
zypper refresh
zypper install chrony