Working With Dates and format the date as per your requirements
1) the below code used to get the current timezones date and current date.
def Datecal = Calendar.getInstance()
log.info(Datecal.getTime())
def sYear = Datecal.get(Calendar.YEAR)
def sMonth = (Datecal.get(Calendar.MONTH)+1).next() // this prints next month
def sDay = Datecal.get(Calendar.DATE)
def sCurrDate = sDay+":"+sMonth+":"+sYear
log.info(sCurrDate)
and below code use to get required date format:-
import java.text.SimpleDateFormat
def sDate = new Date()
def sdf = new SimpleDateFormat("DD/MMM/YYYY")
log.info(sdf.format(sDate))