It varies. Technically speaking history is divided into ancient, medieval (or middle) and modern. Modern in that sense would be any point past the 16th century. However sometimes we use it to refer to 'the present generation', and sometimes 'to this decade'. To complicate matters even more we can speak as the point between the start of the Twentieth Century and the 1950s as modern and all points after as Post Modern time.
of or pertaining to present and recent time;
What do you mean by it CRASHES?
there is a e'ev it means every time
All countries relate their time to "Universal Time(UT)". UT is based on the rotation of the Earth and is a modern continuation of Greenwich Mean Time (GMT).
It is an obselte but modern means of communication
Of or pertaining to the present time, or time not long past; late; not ancient or remote in past time; of recent period; as, modern days, ages, or time; modern authors; modern fashions; modern taste; modern practice., New and common; trite; commonplace., A person of modern times; -- opposed to ancient.
It is the present time not the modern time because if it was the modern time it would be a long, long time ago.
Depends on what you mean by "modern".
"Moderno" means modern or contemporary in Spanish. It is often used to describe something that is current or up-to-date in terms of style, design, or technology.
There are no modern sirens - unless you mean the term - even so Greek sirens were mythological monsters that explained to the people of that time why it was ships and sailors sometimes did not return.
Modern means "new" or "in style" or "fashionable"
The modern numeral for IX is 9.