How long would you have to lay out in the sun to equal laying in a tanning bed for 5 min?

Do NOT lay out in the SUN.

On a hot sunny day,

Sit in the shade , with a cold beer/drink alongside you.

You will receive all the UV light you need for a good tan . and you WILL NOT get Sunburnt, nor dehydrated.

So forget about lying the Sun or on a 'Tan bed'.