SEMOpx Daylight Savings Short Day Testing March 2022

Affected Period



Run type

25/02/2022 10:54

Last Updated
25/02/2022 10:54

Dear Member, 

To prepare for the Summer Daylight Saving Time Change (DST 23, Short Clock Change), which will take place overnight between Saturday 26th March and Sunday 27th March 2022, a test session relative to the DST 23 will be scheduled in the ETS simulation 2 environment on the 10th March, 2022 at 13:30 GMT for the DAM and 14:00 GMT for the IDA1.

This test is optional, but participation is strongly advised, especially for members using an API access. Members using the ETS client are advised to participate and familiarise themselves with the DST order submission and market result format. 

There is no registration needed to participate in the DST tests. You will simply need to connect to the simulation environment and place your bids for auction day 26th March 2022.

For further information, please refer to the following documents:

If you have any queries in advance of the test, please submit your queries to

Kind regards,

SEMOpx Team