#如:2016-10-24 11:20:30  加减 1小时 50分
time1=$(date +%s -d '2016-10-24 11:20:30') # 转换指定日期
# time1=$(date +%s)          # 当前日期

time2=$((1*60*60+50*60))  #1小时 50分

timesnmp1=$(($time1+$time2)) 
echo $(date +"%F %T" -d "1970-01-01 UTC $timesnmp1 seconds")

timesnmp2=$(($time1-$time2))
echo $(date +"%F %T" -d "1970-01-01 UTC $timesnmp2 seconds")

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