# Enum - HostDateTimeInfoProtocol(vim.host.DateTimeInfo.Protocol)

Since
  vSphere API 7.0

## Enum Description

Types of time synchronization protocols.

Enum Constants

Name | Description
--- | ---
ntp | Network Time Protocol (NTP).
ptp | Precision Time Protocol (PTP).

Show WSDL type definition
<simpleType xmlns="http://www.w3.org/2001/XMLSchema" xmlns:vsan="urn:vsan" name="HostDateTimeInfoProtocol"> <restriction base="xsd:string"> <enumeration value="ntp"/> <enumeration value="ptp"/> </restriction> </simpleType>