in 5th May 2018 vs on 5th May 2018

Some examples from the web:

• Starting dates: 19th March, 5th November 2018
• From December,7th 2017 to April, 5th 2018 you can easily reach Val di Sole's slopes with this new bus service FlixBus
• Saturday, may 5th 2018 from 10am to 6pm BASE Milano, via Bergognone 34 Info:
• Friday, 5th May 2004 - SESSION 5
• All days from Wednesday 1st to Sunday 5th May
• Events for 28 May 2018 > Featured
• Events for 28 May 2018 > Lifestyle
• Events for 28 May 2018 > Shopping
• The Regulation applies from 25 May 2018.
• Saturday 26th and Sunday 27th May 2018
• Second course: February - May 2018
• from Gaia Gualtieri - 21 May 2018
• Acceptance of entries: before May 2018
• Ancient Egypt on display until May 2018
• 21 - 23 may 2018 from Tuesday to Thursday
• Pantovola - cherished rag dolls - 4 May 2018
• Milan - Italy, 5th May 2011, NH Machiavelli
• Milan, 5th May 2015 - The latest edition of the online fairs of Pitti Immagine closes on a positivenote.
• Week 3 (29th April - 5th May)
• 5th May 2011/Targetwire/ - Located in the City of Curitiba Brazil, a leader in intelligent transport technology has utilised NEXCOM's VTC 2000 to streamline its bus electronic ticketing system.

Some examples from the web:

• Starting dates: 19th March, 5th November 2018
• From December,7th 2017 to April, 5th 2018 you can easily reach Val di Sole's slopes with this new bus service FlixBus
• Saturday, may 5th 2018 from 10am to 6pm BASE Milano, via Bergognone 34 Info:
• During an excursion to Bosco delle Pianelle, on 5th May 1985, I was lucky enough to come across a tiny rock plant with modest little white flowers.
• The varnishing, that took place on 5th May, is his fifth personal exhibit and includes 20 paintings and 20 sculptures.
• The Patron Feast of San Leo on 5th May;
• Cordenons was mentioned for the first time in a diploma of the King of Italy Verengario I, on 5th May 897, date in which it was in the Curtis regia (royal yard) Naonis.
• The reference document in order to render web site accessible, has been the W3C recommendation published on 5th May 1999, about the lines guides for the Web content (WCAG 1.0).
• Friday, 5th May 2004 - SESSION 5
• All days from Wednesday 1st to Sunday 5th May
• Events for 28 May 2018 > Featured
• Events for 28 May 2018 > Lifestyle
• Events for 28 May 2018 > Shopping
• The Regulation applies from 25 May 2018.
• Saturday 26th and Sunday 27th May 2018
• Second course: February - May 2018
• from Gaia Gualtieri - 21 May 2018
• Acceptance of entries: before May 2018
• Ancient Egypt on display until May 2018
• 21 - 23 may 2018 from Tuesday to Thursday