APPENDIX III. Names of daytime periods in the Roman octaval system
| Name | Period |
| mane | sunrise to end of 3rdhour |
| ad meridiem | 3rd to 6th hour |
| de meridiem | 6th to 9th hour |
| suprema | 9th hour to sunset |
The BSS Sundial Glossary
Pages: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Introduction Dial types Hours (types of) Time (types of) Illustration
Symbols Equations Biographies Chronology Sources Appendices
Pages: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Introduction Dial types Hours (types of) Time (types of) Illustration
Symbols Equations Biographies Chronology Sources Appendices