You go on Yahoo chart. Click on dividend. Click the last ballon. Read the date and add the number of days the dividend cycle is. If the calculated date fall on Saturday, the xdate is Friday. If the calculated date is Sunday, the xdate is Monday. Wait 5 days before the calculated date and MVO will publish the exact date. It may vary 5 or 6 days.It has worked for me several years.
They won't announce until April. Typically MVO announces around 6-7th of the month, record date is in the middle 15-16th (which pushes x-date back to around 12-13th), pay date is at the end of the month. Look for an announcement Friday, April 6.