The sixth day of the week, following Friday and preceding Sunday. The kanji '土' (do) means earth or soil, linking it to the planet Saturn. It is one of the two weekend days, often used for leisure, errands, or relaxation.

一(いち)週(しゅう)間(かん)の六(むい)日(か)目(め)で、金(きん)曜(よう)日(び)の次(つぎ)に来(く)ます。「土(ど)」の字(じ)は土(ど)星(せい)を表(あらわ)し、週(しゅう)末(まつ)の1つです。