For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/X11:Deepin/openSUSE_Tumbleweed/X11:Deepin.repo
zypper refresh
zypper install deepin-calendar
For openSUSE Factory PowerPC run the following as root:
zypper addrepo https://download.opensuse.org/repositories/X11:Deepin/openSUSE_Factory_PowerPC/X11:Deepin.repo
zypper refresh
zypper install deepin-calendar
For openSUSE Factory ARM run the following as root:
zypper addrepo https://download.opensuse.org/repositories/X11:Deepin/openSUSE_Factory_ARM/X11:Deepin.repo
zypper refresh
zypper install deepin-calendar