Please read the following table in HTML format from a webpage and then answer the question in detail according to the table. Each table cell is defined by a <td> and a </td> tag. Each table row starts with a <tr> and ends with a </tr> tag. 'rowspan=m' and 'colspan=n' represents a cell spaning over 'm' rows and 'n' columns.

Webpage title:
2015–16 Arunachal Pradesh political crisis
Table title:
Chief Ministers during the period
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > S No. </th><th colspan=1 rowspan=1 > Name </th><th colspan=2 rowspan=1 > Term </th><th colspan=2 rowspan=1 > Party </th><th colspan=1 rowspan=1 > Tenure (days) </th></tr>
<tr> <td colspan=1 rowspan=1 > 6 </td><td colspan=1 rowspan=1 > Jarbom Gamlin </td><td colspan=1 rowspan=1 > 5 May 2011 </td><td colspan=1 rowspan=1 > 1 November 2011 </td><td colspan=1 rowspan=1 > Indian National Congress </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > 181 </td></tr>
<tr> <td colspan=1 rowspan=1 > 7 </td><td colspan=1 rowspan=1 > Nabam Tuki </td><td colspan=1 rowspan=1 > 1 November 2011 </td><td colspan=1 rowspan=1 > 26 January 2016 </td><td colspan=1 rowspan=1 > Indian National Congress </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > 1547 </td></tr>
<tr> <td colspan=1 rowspan=1 > – </td><td colspan=1 rowspan=1 > Vacant (President's rule) </td><td colspan=1 rowspan=1 > 26 January 2016 </td><td colspan=1 rowspan=1 > 19 February 2016 </td><td colspan=1 rowspan=1 > N/A </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > 24 </td></tr>
<tr> <td colspan=1 rowspan=1 > 8 </td><td colspan=1 rowspan=1 > Kalikho Pul </td><td colspan=1 rowspan=1 > 19 February 2016 </td><td colspan=1 rowspan=1 > 13 July 2016 </td><td colspan=1 rowspan=1 > People's Party of Arunachal </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > 145 </td></tr>
<tr> <td colspan=1 rowspan=1 > (7) </td><td colspan=1 rowspan=1 > Nabam Tuki </td><td colspan=1 rowspan=1 > 13 July 2016 </td><td colspan=1 rowspan=1 > 17 July 2016 </td><td colspan=1 rowspan=1 > Indian National Congress </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > 4 </td></tr>
<tr> <td colspan=1 rowspan=3 > 9 </td><td class="highlighted"  colspan=1 rowspan=3 > Pema Khandu </td><td colspan=1 rowspan=1 > 17 July 2016 </td><td class="highlighted"  colspan=1 rowspan=1 > 16 September 2016 </td><td class="highlighted"  colspan=1 rowspan=1 > Indian National Congress </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=3 > 1 year, 354 days </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 16 September 2016 </td><td colspan=1 rowspan=1 > 31 December 2016 </td><td class="highlighted"  colspan=1 rowspan=1 > People's Party of Arunachal </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 31 December 2016 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Bharatiya Janata Party </td><td colspan=1 rowspan=1 >  </td></tr>
</table>
Question:
When Pema Khandu quit INC and joined the People's Party of Arunachal and later to Bharatiya Janata Party?
Answer:
On 16 September 2016, Pema Khandu quit INC and joined the People's Party of Arunachal (PPA), and on 31 December 2016, he left PPA and joined Bharatiya Janata Party.