2016-01-01 Employer
        Me   -5400s
        Them  5400s
2016-01-01 Employer
        Me   -3600s
        Them  3600s
2016-01-02 Employer
        Me   -1800s
        Them  1800s
2016-01-02 Employer
        Me   -30s
        Them  30s

$ hledger -f- check

#test reg --time-colon
#16-Jan-01 Employer              Me                           -1:30h       -1:30h
#                                Them                          1:30h            0
#16-Jan-01 Employer              Me                           -1:00h       -1:00h
#                                Them                          1:00h            0
#16-Jan-02 Employer              Me                           -30:0m       -30:0m
#                                Them                          30:0m            0
#16-Jan-02 Employer              Me                             -30s         -30s
#                                Them                            30s            0
#end test
#