National Library Week Bookmark Contest Voting Calendar When: 2 April, 2018 – 7 April, 2018 all-day America/Chicago Timezone 2018-04-02T00:00:00-05:00 2018-04-08T00:00:00-05:00 Community Family/All Ages Vote for this year’s bookmark entries starting Monday, April 2nd and ending Saturday, April 7th. Winners will be announced during National Library Week, April 8th – 14th. Bookmarks are on display at the library.