晚间时段 meaning in English

prime time

I have tried a couple of times to book water sports facilities at evening sessions , but all available sessions are shown to be fully booked . is there something wrong with the system
我尝试多次预定晚间时段之水上活动设施，但每次系统都表示所有时段已被预定，系统是否出现问题？
As the opening hours for water sports center is normally from 9 : 00am to noon , and from 1 : 00pm to 4 : 00pm , there will not be any evening sessions available for booking
由于水上活动中心的开放时间一般为上午九时至中午十二时及下午一时至四时，所以晚间时段之水上活动设施是不能预定的。
Q11 : i have tried a couple of times to book water sports facilities at evening sessions , but all available sessions are shown to be fully booked . is there something wrong with the system
问11 ：我尝试多次预定晚间时段之水上活动设施，但每次系统都表示所有时段已被预定，系统是否出现问题？
So , the expert advocates the dusk to take exercise , but in evening period of time , want to notice athletic intensity , otherwise intensity can make sympathetic high excited too , cloggy fall asleep
所以，专家提倡傍晚锻炼，但在晚间时段，要注重运动强度，否则强度过高会使交感神经兴奋，妨碍入睡。