(1) Some languages could localize the hephen to "~" or "to". (2) Both 12hr format and 24hr format will have spaces around the hyphen. Bug: 267185303 Bug: 266839251 Bug: 267349989 Bug: 267572852 Bug: 267595534 Test: manual Change-Id: I62ff37d9ab20292621ee29ee3080cea7f8fd0fdb