President pro tempore of the Senate of the Philippines

The President pro tempore of the Senate of the Philippines is the second highest-ranking official of the Senate of the Philippines. When the Senate President cannot do his job in the Senate, the Senate President pro tempore presides over the Senate.

List of Senate presidents pro tempore
President pro temporePartyTerm startTerm endLegislatureSenate PresidentSenate of the Philippine IslandsEsperidion GuancoNacionalista191919225th LegislatureManuel L. QuezonSergio OsmeñaNacionalista192219346th Legislature7th Legislature8th Legislature9th LegislatureManuel L. QuezonJose ClarinNacionalista193419359th LegislatureManuel L. QuezonJose AvelinoNacionalista1935193510th LegislatureManuel L. QuezonNo SenateSenate of the Commonwealth of the PhilippinesElpidio QuirinoNacionalistaJuly 9, 1945May 25, 19461st CongressManuel RoxasMelecio ArranzLiberalMay 25, 1946July 4, 19462nd CongressJosé AvelinoSenate of the PhilippinesMelecio ArranzLiberalJuly 4, 1946December 30, 19491st CongressJosé AvelinoMariano Jesús CuencoQuintin ParedesLiberalJanuary 31, 1950March 5, 19522nd CongressMariano Jesús CuencoEsteban AbadaLiberalMarch 5, 1952May 7, 19522nd CongressQuintín ParedesCamilo OsíasEulogio RodriguezManuel BrionesNacionalistaMay 7, 1952April 17, 19532nd CongressEulogio RodriguezJose ZuluetaLiberalApril 17, 1953April 30, 19532nd CongressCamilo OsíasManuel BrionesNacionalistaApril 30, 1953December 10, 19572nd Congress3rd CongressJosé ZuluetaFernando LopezDemocratic January 27, 1958December 17, 19654th Congress
5th CongressEulogio RodriguezFerdinand MarcosNacionalista Lorenzo SumulongNacionalistaJanuary 17, 1966December 30, 19666th CongressArturo TolentinoGil PuyatJose J. RoyNacionalistaJanuary 26, 1967September 23, 19727th CongressGil PuyatNo SenateSenate of the PhilippinesTeofisto Guingona Jr.LiberalJuly 27, 1987July 23, 19908th CongressJovito SalongaSotero LaurelNacionalistaJuly 23, 1990January 18, 19928th CongressJovito SalongaNeptali GonzalesErnesto MacedaPDP–LabanJanuary 18, 1992January 18, 19938th Congress9th CongressNeptali GonzalesTeofisto Guingona Jr.LakasJanuary 18, 1993July 6, 19939th CongressEdgardo AngaraLeticia Ramos-ShahaniLakasJuly 6, 1993October 10, 19969th Congress10th CongressEdgardo AngaraNeptali GonzalesBlas OpleLDP October 10, 1996June 29, 199910th Congress11th CongressErnesto MacedaNeptali GonzalesMarcelo FernanLAMMP John Henry OsmeñaLAMMPJune 29, 1999July 12, 200011th CongressBlas OpleBlas OpleLAMMPJuly 12, 2000June 30, 200111th CongressFranklin DrilonAquilino Pimentel Jr.Manuel VillarIndependentJuly 23, 2001August 12, 200212th CongressFranklin DrilonJuan FlavierLakasAugust 12, 2002June 30, 200712th Congress13th CongressFranklin DrilonManuel VillarJinggoy EstradaPMPJuly 23, 2007June 30, 201314th Congress15th CongressManuel VillarJuan Ponce EnrileRalph RectoLiberalJuly 22, 2013June 30, 201616th CongressFranklin DrilonFranklin DrilonLiberalJuly 25, 2016February 27, 201717th CongressKoko PimentelRalph RectoLiberal February 27, 2017June 2, 202217th Congress18th CongressKoko PimentelTito SottoNacionalista Juan Miguel ZubiriActingIndependent June 2, 2022July 25, 202218th CongressTito SottoLoren LegardaJuly 25, 2022May 20, 202419th CongressJuan Miguel ZubiriJinggoy Ejercito EstradaMay 20, 2024Present19th CongressFrancis Escudero

Living former Senate Presidents pro tempore
Currently there are five living former Senate Presidents pro tempore:

References
List of Senators of the Philippines

Other websites
Senate of the Philippines