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Changing the format of these Calendar Event Variables is very easy and straightforward as well. In order to make this as flexible as possible, we are using the default system settings for that. To change that, open the custom format settings for “Dates” and “Times”“Dates” and “Times”, which can be found here:
Open the macOS System Preferences and open the “Date & Time” Preferences Panel.
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Open “Language & Region” Settings.
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Switch to the “Advanced” Settings.
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Change “Dates” and/or “Times” Format Settings here ("Full:").
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