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# SOAP API

> Use this reference to learn how changing the time zone affects the SOAP API.

Use this reference to learn how changing the time zone affects the SOAP API.

Example field: Usage.StartDateTime

| Example input value       | Response value            | Explanation                                                                                                              |
| ------------------------- | ------------------------- | ------------------------------------------------------------------------------------------------------------------------ |
| 2015-01-01T16:00:00       | 2015-01-01T16:00:00+01:00 | If you do not enter a time zone offset, your tenant time zone offset is added automatically.                             |
| 2015-01-01T16:00:00+01:00 | 2015-01-01T16:00:00+01:00 | If you input your tenant time zone offset, the value remains unchanged.                                                  |
| 2015-01-01T16:00:00+04:00 | 2015-01-01T13:00:00+01:00 | If you input a time zone offset different than your tenant time zone, the value is converted into your tenant time zone. |