It is argued that space-time is absolute and Euclidean. This will be s
hown by means of a new concept of time. In special relativity the prop
er time of the observer is taken as the fourth coordinate for all the
observed objects including the observer himself. We will show that thi
s is not a canonical way to ascribe a fourth coordinate to an event. W
e will justify that a fourth coordinate can he ascribed to an event in
a more canonical way by means of a new concept of time. In this new c
oncept of time the proper time of the object, instead of the proper ti
me of an observer, is taken as the fourth coordinate for the object. F
or measurements based on clocks, we will see that with the application
of the Einsteinian synchronization procedure, in an absolute Euclidea
n space-time the special theory of relativity is recovered. We will al
so show that other types of experiments can be understood within the c
oncepts of an absolute Euclidean space-time.