no one knows the day/hour

we have general guidelines

the main one of which indicated this final generation would not pass away until all prophecy had been fulfilled

it indicated this generation began in no uncertain terms in 1948

a generational time span is given by example in biblical writings, one of those time spans is a 70 year time span and the other one was applicable back in the day when we weren't being continuously poisoned by TPTB

so the 70 yr time frame is the obvious choice/conclusion

that means by or before 2018