{assign var = "current" value = $params|@current}
{math assign = "prev" equation = 'x + 86400' x = $current}
{if $current|date_format:'%D' eq $smarty.now|date_format:'%D'}
    {$current|date_format:'Today - %l:%M %p'}
{elseif $prev|date_format:'%D' eq $smarty.now|date_format:'%D'}
    {$current|date_format:'Yesterday - %l:%M %p'}
{else}
    {assign var = 'date_format' value = $column.format|default:'%m/%d/%Y %l:%M %p'}
    {$current|date_format:$date_format|default:$column.emptyText}
{/if}