Interdata732/usr/source/troff/doc/datemac

.if \n(mo=1 .ds mo January
.if \n(mo=2 .ds mo February
.if \n(mo=3 .ds mo March
.if \n(mo=4 .ds mo April
.if \n(mo=5 .ds mo May
.if \n(mo=6 .ds mo June
.if \n(mo=7 .ds mo July
.if \n(mo=8 .ds mo August
.if \n(mo=9 .ds mo September
.if \n(mo=10 .ds mo October
.if \n(mo=11 .ds mo November
.if \n(mo=12 .ds mo December
.if \n(dw=1 .ds dw Sunday
.if \n(dw=2 .ds dw Monday
.if \n(dw=3 .ds dw Tuesday
.if \n(dw=4 .ds dw Wednesday
.if \n(dw=5 .ds dw Thursday
.if \n(dw=6 .ds dw Friday
.if \n(dw=7 .ds dw Saturday