These fundamental physical quantities exist in minimum values. When Niels Bohr in 1913 introduced the quantum conception, he started by quantizing a derived physical quantity, the socalled angular momentum of an electron, orbiting a center, f.i. around a proton in a hydrogen atom. This angular momentum is defined as the product of the electron's mass, its velocity and its distance from the orbit center. Niels Bohr thus did not assume that the basic physical quantities are quantized, but that this could be the case for quantities at a higher level. Elementary length is equal to Planck's constant divided by the product of the total mass of the Universe and the velocity of light.
Elementary time is given by the quotient between elementary length and the velocity of light.
Elementary length and elementary time can be understood as 'the distance atom' and 'the time atom', respectively. Definite physical lengths, time intervals and masses are equal to the respective elementary quantities multiplied by a natural number. Unifying micro- and macrocosmos. The latter I consider to be the most fundamental quantity in the Universe. No previous theory has to my knowledge the total mass of the Universe as a fundamental quantity.