db.serverDate | Weixin public doc

# db.serverDate

Constructs a reference to the server time, used to query a condition, update a field value, or add a record.

The method signature is shown as below:

function serverDate(options?: object): ServerDate

The method accepts an optional object parameter "options", whose field is defined as follows:

Field	Type	Required	Default	Description
offset	number	No		The offset of the server time referenced (in ms). It can be positive or negative.

Sample code

When adding a record, set the field as the server time:

const cloud = require('wx-server-sdk')
cloud.init()
const db = cloud.database()
exports.main = async (event, context) => {
  try {
    return await db.collection('todos').add({
      description: 'eat an apple',
      createTime: db.serverDate()
    })
  } catch(e) {
    console.error(e)
  }
}

Update the field to one hour later than the server time:

const cloud = require('wx-server-sdk')
cloud.init()
const db = cloud.database()
exports.main = async (event, context) => {
  try {
    return await db.collection('todos').doc('my-todo-id').update({
      due: db.serverDate({
        offset: 60 * 60 * 1000
      })
    })
  } catch(e) {
    console.error(e)
  }
}
``