timetrans: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On CentOS possible default full paths are:

/usr/bin/timetrans - from package: dnssec-tools

You may install the required package with command yum install {package}

Error in other languages:
timetrans: bevel nie gevind nie
timetrans: comandă negăsită
timetrans: comando não encontrado
timetrans: commande introuvable
timetrans: command not found
timetrans: käsku ei ole
timetrans: không tìm thấy lệnh
timetrans: komanda nerasta
timetrans: Kommando nicht gefunden.
timetrans: kommandot finns inte
timetrans: komut yok
timetrans: nie znaleziono polecenia
timetrans: níor aimsíodh an t-ordú
timetrans: no se encontró la orden
timetrans: no s'ha trobat l'ordre
timetrans: opdracht niet gevonden
timetrans: parancs nem található
timetrans: perintah tidak ditemukan
timetrans: príkaz nenájdený
timetrans: příkaz nenalezen
timetrans: команда не найдена
timetrans: командата не е открита
timetrans: 命令找不到
timetrans: コマンドが見つかりません