Better go back and study Hebrew some more. Yom is NOT always 24 hours.
In genesis YOM is a 24 hour day
that is confirmed in Exodus chapter 20, also
If you disagree, then you are calling God a liar when he gave Moses the 10 Commandments
Look it up
Ex 20:1 And God spake all these words, saying,
Ex 20:2 I [am] the Lord thy God, which have brought thee out of the land of Egypt, out of the house of bondage.
Ex 20:3 Thou shalt have no other gods before me.
Ex 20:4 Thou shalt not make unto thee any graven image, or any likeness [of any thing] that [is] in heaven above, or that [is] in the earth beneath, or that [is] in the water under the earth:
Ex 20:5 Thou shalt not bow down thyself to them, nor serve them: for I the Lord thy God [am] a jealous God, visiting the iniquity of the fathers upon the children unto the third and fourth [generation] of them that hate me;
Ex 20:6 And shewing mercy unto thousands of them that love me, and keep my commandments.
Ex 20:7 Thou shalt not take the name of the Lord thy God in vain; for the Lord will not hold him guiltless that taketh his name in vain.
Ex 20:8 Remember the sabbath day, to keep it holy.
Ex 20:9 Six days shalt thou labour, and do all thy work:
Ex 20:10 But the seventh day [is] the sabbath of the Lord thy God: [in it] thou shalt not do any work, thou, nor thy son, nor thy daughter, thy manservant, nor thy maidservant, nor thy cattle, nor thy stranger that [is] within thy gates:
Ex 20:11 For [in] six days the Lord made heaven and earth, the sea, and all that in them [is], and rested the seventh day: wherefore the Lord blessed the sabbath day, and hallowed it.
Ex 20:12 Honour thy father and thy mother: that thy days may be long upon the land which the Lord thy God giveth thee.
Ex 20:13 Thou shalt not kill.
Ex 20:14 Thou shalt not commit adultery.
Ex 20:15 Thou shalt not steal.
Ex 20:16 Thou shalt not bear false witness against thy neighbour.
Ex 20:17 Thou shalt not covet thy neighbour’s house, thou shalt not covet thy neighbour’s wife, nor his manservant, nor his maidservant, nor his ox, nor his ass, nor any thing that [is] thy neighbour’s.