At job asking for time

#!/bin/bash

at now +1 minutes -f ./test.sh

logFile="/home/.../testLog.txt"

time1="114000"
time2="153000"
currentTime=`date +"%H%M%S"`

echo "" >> "$logFile"
date >> "$logFile"
echo "$currentTime" >> "$logFile"
echo "" >> "$logFile"


if [[ "$currentTime" < "$time1" || "$currentTime" > "$time2" ]]
then
    echo "case1" >> "$logFile"
else
    echo "case2" >> "$logFile"
fi

This script is saved in a file called test.sh. When I execute it at for example 5 pm it writes case1 into my log file. But for each subsequent at call (which takes place every minute) the script writes case2 into my log file. Can you explain why?