add support in datetime (type) on utils fix type
add support in datetime (type) on utils fix type

mlgruby/mining,AndrzejR/mining,mining/mining,mlgruby/mining,seagoat/mining,jgabriellima/mining,jgabriellima/mining,mining/mining,chrisdamba/mining,mlgruby/mining,chrisdamba/mining,avelino/mining,avelino/mining,AndrzejR/mining,seagoat/mining