The 0s covers the first nine years of the Anno Domini era, which began on January 1, AD 1 and ended on December 31, AD 9, almost aligned with the 1st decade (1–10).
The 0S CoVeRs tHe firST nINe YeaRs of the anno domINI eRa, whIch begAn on jAnuaRy 1, ad 1 and eNdEd on deCembER 31, ad 9, almOSt aligNED wIth the 1sT deCade (1–10).