 <nz-space nzDirection="vertical" style="width: 100%">
    <nz-time-picker *nzSpaceItem nzVariant="outlined" />
    <nz-time-picker *nzSpaceItem nzVariant="filled" />
    <nz-time-picker *nzSpaceItem nzVariant="borderless" />
    <nz-time-picker *nzSpaceItem nzVariant="underlined" />
  </nz-space>