{{ if .Params.start_date }}
    {{  time.Format "January 2006" .Params.start_date }}
    —
    {{ if .Params.end_date }}
        {{  time.Format "January 2006" .Params.end_date }}
    {{ else }}
        Present
    {{ end }}
{{ else }}
    {{ if .Date }}
    {{ .Date.Format "January 2006" }}
    {{ end }}
{{ end }}