to come to one's aid at a difficult time

stand by or be useful in time of need, helping in trouble, helping in distress

in time of adversity, when times are bad

no one shows up at the crucial hour

end of the time

adversity is the best judge of friend and foe

be at the hour of death

help in trouble

serve someone in time of need

be of use

for the hour of death to arrive

in time, seasonably, at the proper time, in the nick of time, in time of need

in the nick of time, just on time, just then, on cue

insulting or maligning a good or pious person rebounds upon oneself

timely, on time

to turn on someone at the crucial hour

Protest

take to streets