08:00 by Whose Clock? Reading an EA’s Trading Hours

An EA can appear to act at the wrong hour when you read its schedule against a different clock. A few minutes comparing server time with GMT gives you the offset you need to translate the hours.

08:00 needs a clock attached

You have run a demo, read the settings and found a time: 08:00. It is easy to assume that means eight in the morning where you live. If you spend more time looking at charts, you might assume it means 08:00 on the chart instead.

I check the clock first. Before interpreting an EA’s schedule, I want to know what its hours refer to. “08:00 by whose clock?” is the question that makes the rest of the description readable.

There are three clocks to keep separate:

• Your computer’s clock: the time displayed on your computer, usually set to your local time.
• The broker server’s clock: the time shown in the terminal’s Market Watch header and used on the chart time axis.
• GMT: a shared reference against which you can compare the other two.

These clocks may show different hours at the same moment. The chart is therefore not a reliable shortcut to your local time, and an hour in an EA description is not automatically a chart hour. The description needs to identify its clock.

A quick clock check in the terminal

The useful number is the server’s offset from GMT: how far ahead of or behind GMT the server clock is. Here is the check I use when reading a schedule:

1. Read the server time in the Market Watch header of the terminal connected to the account you are checking.
2. Compare it with a GMT clock at the same moment. Comparing readings taken several minutes apart introduces an unnecessary difference.
3. Subtract GMT from server time. Write down the offset, its sign and the date. If the readings fall on different dates around midnight, include the dates in the calculation.
4. Recheck after spring/autumn clock changes. The offset can change when the broker changes its clock.

Do not carry an offset from one broker to another without checking it. Each server needs its own comparison. A note such as “server = GMT + 2 hours, checked today” is more useful than remembering that the chart looked two hours ahead.

One reading, one measured offset

In one terminal reading, the MT5 Market Watch header reads Market Watch: 03:04:30. At that same moment, GMT is 01:04:30.

The subtraction is straightforward: 03:04:30 minus 01:04:30 equals two hours. That demo server is therefore GMT+2 on that day. It shows 03:04 while GMT is 01:04. This establishes the offset for that observation; it does not establish a permanent offset for the server or an offset for another broker.

Turn the stated hour into the hour you watch

Once the clock is identified, the conversion is simple. For a GMT+2 server, add two hours to convert GMT into server time. Subtract two hours to convert server time into GMT.

For example, assuming an EA’s label means 08:00 server time, it means 06:00 GMT on a GMT+2 server. With an assumed GMT+3 offset, that same 08:00 server label means 05:00 GMT. The label stays the same; the GMT hour differs.

If you watch your computer’s clock, use its offset from GMT for the relevant date to complete the conversion. Convert every hour in the EA description into the clock you actually watch, including the end of a stated window.

When a description or setting leaves the reference unclear, ask the seller which clock the hours use. A precise hour without that information is still an incomplete schedule.

How my EA uses the clock

Gold Storm PRO is my Expert Advisor for XAUUSD (gold). By default, Gold Storm PRO places new orders from 08:00 to 15:00 GMT, whatever the broker’s server time. These hours can be changed.

By default, on Fridays Gold Storm PRO deletes its pending orders at 13:00 GMT and closes its open positions at 16:00 GMT; these hours can be changed.