#!/bin/sh

tz=$(date "+%Z")

if (( $EUID != 0 )); then
    echo "Please run as root"
    exit
elif [[ "$tz" == "CDT" ]]; then
  ln -sf /usr/share/zoneinfo/America/New_York /etc/localtime
  echo "Changed to Eastern Daylight Time timezone"
elif [[ "$tz" == "EDT" ]]; then
  ln -sf /usr/share/zoneinfo/US/Central /etc/localtime
  echo "Changed to Central timezone"
fi

# Update system clock
echo "Updating system clock"
ntpd -gq >/dev/null 2>&1