Present Perfect with "for" and "since".

for a long period

since a long period

for 6 years

since 6 years

for 1992

since 1992

for 6 weeks

since 6 weeks

for 8 months

since 8 months

for a long time

since a long time

for ages

since ages

for March 18

since March 18

for the end of last year

since the end of last year

for I joined the film

since I joined the film

for 10 hours

since 10 hours

for 10 o'clock

since 10 o'clock