Date Time Format in E-Mails

I can configure the date time format on every page. Only as e-mail content/shortcode there will always be “xx:yy am/pm”, I cannot configure the shortcode to 24 hour format. https://docs.webinarpress.com/article/96-notification-email-and-reminder-shortcodes

Can you help me to get a 24 hour format into my e-mails?