| Subject | English | Welsh |
| comp., MS | Date Navigator | Llywiwr Dyddiadau (The small calendar that displays the current month in Calendar. It provides a quick and easy way to move appointments and to view other dates) |
| comp., MS | date range | ystod dyddiadau (The time span between the start and end dates) |
| comp., MS | date separator | gwahanydd data (A character that is used to separate the day, month, and year when date values are formatted. The characters are determined by system settings or by the Format function) |
| comp., MS | Date/Time | Dyddiad/Amser (A data type used to hold date and time information) |