Assuming zohotz is required, the following result was found.
v_XeroTime = "/Date(1712222830083+0100)/"; v_ZohoEpoch = v_XeroTime.replaceAll("/Date\((\d+)([+-]\d{4})\)/","$1",false); v_ZohoTZ = v_XeroTime.replaceAll("/Date\((\d+)([+-]\d{4})\)/","$2",false); v_ZohoTime = v_ZohoEpoch.toLong().toTime("yyyy-MM-dd...