Time zones are usually defined as differing from UTC by an integer number of hours, although the laws of each jurisdiction would have to be consulted if sub-second accuracy was required. Several jurisdictions have established time zones that differ by an integer number of half-hours or quarter-hours from UT1 or UTC.
Ayad, is an indirect Quranic name. Pronounced as (U)ltimate + (YA)r(D), it is the plural of Ayd (hands, power, blessings), which itself is the plural of Yad (hand, blessing).
Riyad /riy-ad/ [2 sylls.] as a boys' name is of Arabic origin, and the meaning of Riyad is  gardens .Place name.Name of the capital of Saudi Arabia.iyad is an uncommon given name for males. Riyad is an equally rare surname for both adults and children. (2000 U.S. Census). Shown below is the baby name popularity of Riyad for boys.