ADVFN Logo ADVFN

Não encontramos resultados para:
Verifique se escreveu corretamente ou tente ampliar sua busca.

Tendências Agora

Rankings

Parece que você não está logado.
Clique no botão abaixo para fazer login e ver seu histórico recente.

Recursos principais

Registration Strip Icon for smarter Negocie de forma mais inteligente, não mais difícil: Libere seu potencial com nosso conjunto de ferramentas e discussões ao vivo.
Stellar LumensXLM
US$ 0,337538
-0,004333
(
-1,27%
)
Info
Posição Posição 14
Moeda
Não Minerável
Oferta
US$ 0,337428
Bolsa
GDAX
Venda
US$ 0,33754
Último Horário de Negociação
02:12:01
Volume (24h)
$ 69.471.808
Tamanho da Última Negociação
3,60
Volume/Capitalização de Mercado (24h)
0,01%
Preço de Negociação
US$ 0,337447
Capitalização de Mercado Totalmente Diluída
US$ 16.877.503.416
Data de Gênese
29/09/2013
Variação Diária 0,336104-0,34249
Variação de 52 Semanas 0,00000000-0,00000000
Oferta em Circulação 30.602.802.632 / 50.001.787.697
61.2%
#BolsaParesPreçoVolumePreço x VolumeVolume (%)Atualizado
0.337538Coinbase8093835.19877/cdn/crypto/logos/exchanges/GDAX.pngUS$ 2.745.700,391740017526XLM/USDhttps://pro.coinbase.com/trade/XLM-USDUSD1https://pro.coinbase.com/trade/XLM-USD45.229896874Recentemente
0.3375Binance5022123/cdn/crypto/logos/exchanges/BINA.png$ 1.705.680,401740017524XLM/USDThttps://www.binance.com/en/trade/XLM_USDTUSDT2https://www.binance.com/en/trade/XLM_USDT28.0645824631Recentemente
0.33745OKX1636235.93421/cdn/crypto/logos/exchanges/OKEX.png$ 554.891,231740017525XLM/USDThttps://www.okx.com/trade-spot/XLM-USDTUSDT3https://www.okx.com/trade-spot/XLM-USDT9.14359889328Recentemente
0.33714Bitstamp1016371.5955/cdn/crypto/logos/exchanges/BSTP.pngUS$ 346.128,601740017526XLM/USDhttps://www.bitstamp.net/markets/xlm/usdUSD4https://www.bitstamp.net/markets/xlm/usd5.67967858513Recentemente
0.33719DigiFinex407128/cdn/crypto/logos/exchanges/DGFX.png$ 138.392,231740017274XLM/USDThttps://www.digifinex.com/en-ww/trade/USDT/XLMUSDT5https://www.digifinex.com/en-ww/trade/USDT/XLM2.27510901844Recentemente
3.48E-6Binance388126/cdn/crypto/logos/exchanges/BINA.pngBTC 1,361740017509XLM/BTChttps://www.binance.com/en/trade/XLM_BTCBTC6https://www.binance.com/en/trade/XLM_BTC2.16892221339Recentemente
0.3379Kucoin222895.03/cdn/crypto/logos/exchanges/KUCN.png$ 75.617,941740016918XLM/USDThttps://trade.kucoin.com/XLM-USDTUSDT7https://trade.kucoin.com/XLM-USDT1.2455799967610 mins atrás
0.33704Gate.io191730.52/cdn/crypto/logos/exchanges/GATE.png$ 65.131,911740015848XLM/USDThttps://gate.io/trade/XLM_USDTUSDT8https://gate.io/trade/XLM_USDT1.0714267629928 mins atrás
0.00012384Binance152944/cdn/crypto/logos/exchanges/BINA.pngETH 19,081740017525XLM/ETHhttps://www.binance.com/en/trade/XLM_ETHETH9https://www.binance.com/en/trade/XLM_ETH0.854680281672Recentemente
0.33708Crypto.com104855/cdn/crypto/logos/exchanges/CRTO.png$ 35.505,851740017492XLM/USDThttps://crypto.com/exchange/trade/XLM_USDTUSDT10https://crypto.com/exchange/trade/XLM_USDT0.585949765501Recentemente
0.32415Bitvavo101146.22973/cdn/crypto/logos/exchanges/BITV.png€ 33.010,601740017525XLM/EURhttps://account.bitvavo.com/markets/XLM-EUREUR11https://account.bitvavo.com/markets/XLM-EUR0.565224448921Recentemente
0.322988Coinbase97387/cdn/crypto/logos/exchanges/GDAX.png€ 31.650,671740017526XLM/EURhttps://pro.coinbase.com/trade/XLM-EUREUR12https://pro.coinbase.com/trade/XLM-EUR0.544217155241Recentemente
0.3374LBank79974/cdn/crypto/logos/exchanges/LBNK.png$ 27.194,181740017525XLM/USDThttps://www.lbank.info/exchange/xlm/usdtUSDT13https://www.lbank.info/exchange/xlm/usdt0.446909985658Recentemente
0.3371LATOKEN74106.424/cdn/crypto/logos/exchanges/LATK.png$ 25.085,751740017262XLM/USDThttps://exchange.latoken.com/exchange/XLM-USDTUSDT14https://exchange.latoken.com/exchange/XLM-USDT0.414120850364Recentemente
0.3374Coinbase66039.9/cdn/crypto/logos/exchanges/GDAX.png$ 22.417,281740017524XLM/USDThttps://pro.coinbase.com/trade/XLM-USDTUSDT15https://pro.coinbase.com/trade/XLM-USDT0.369043573685Recentemente
0.33736Kraken61999.2351092/cdn/crypto/logos/exchanges/KRKN.pngUS$ 21.014,311740016987XLM/USDhttps://trade.kraken.com/markets/kraken/XLM/USDUSD16https://trade.kraken.com/markets/kraken/XLM/USD0.3464635665789 mins atrás
0.323902Kraken26032.0617151/cdn/crypto/logos/exchanges/KRKN.png€ 8.464,391740016986XLM/EURhttps://trade.kraken.com/markets/kraken/XLM/EUREUR17https://trade.kraken.com/markets/kraken/XLM/EUR0.145472132549 mins atrás
0.3378Bitfinex21575.3600271/cdn/crypto/logos/exchanges/BFNX.pngUS$ 7.317,781740017524XLM/USDhttps://www.bitfinex.com/t/XLM:USDUSD18https://www.bitfinex.com/t/XLM:USD0.120567232354Recentemente
0.3224Binance20458/cdn/crypto/logos/exchanges/BINA.png€ 6.642,521740017525XLM/EURhttps://www.binance.com/en/trade/XLM_EUREUR19https://www.binance.com/en/trade/XLM_EUR0.114323211126Recentemente
50.887bitFlyer19475.9405282/cdn/crypto/logos/exchanges/BITF.png¥ 997.942,771740017522XLM/JPYhttps://cryptowat.ch/markets/bitflyer/XLM/JPYJPY20https://cryptowat.ch/markets/bitflyer/XLM/JPY0.108835275241Recentemente
0.338767HTX17884.7009/cdn/crypto/logos/exchanges/HUOB.png$ 6.093,551740011392XLM/USDThttps://www.huobi.com/en-us/exchange/xlm_usdtUSDT21https://www.huobi.com/en-us/exchange/xlm_usdt0.09994312429932 horas atrás
0.32273Bitstamp15540.7881139/cdn/crypto/logos/exchanges/BSTP.png€ 5.035,581740017525XLM/EURhttps://www.bitstamp.net/markets/xlm/eurEUR22https://www.bitstamp.net/markets/xlm/eur0.0868448920036Recentemente
3.48E-6Coinbase15027/cdn/crypto/logos/exchanges/GDAX.pngBTC 0,0525591740017509XLM/BTChttps://pro.coinbase.com/trade/XLM-BTCBTC23https://pro.coinbase.com/trade/XLM-BTC0.0839737458984Recentemente
3.48E-6Bitstamp10695.2146975/cdn/crypto/logos/exchanges/BSTP.pngBTC 0,0375931740017113XLM/BTChttps://www.bitstamp.net/markets/xlm/btcBTC24https://www.bitstamp.net/markets/xlm/btc0.05976690233177 mins atrás
0.00012397LATOKEN7264.905/cdn/crypto/logos/exchanges/LATK.pngETH 0,9064931740016838XLM/ETHhttps://exchange.latoken.com/exchange/XLM-ETHETH25https://exchange.latoken.com/exchange/XLM-ETH0.040597676611911 mins atrás
0.33737EXMO5548/cdn/crypto/logos/exchanges/EXMO.png$ 1.885,761740017483XLM/USDThttps://exmo.com/en/trade#?pair=XLM_USDTUSDT26https://exmo.com/en/trade#?pair=XLM_USDT0.0310032835725Recentemente
3.48E-6Kucoin3947.6397/cdn/crypto/logos/exchanges/KUCN.pngBTC 0,0138221740016057XLM/BTChttps://trade.kucoin.com/XLM-BTCBTC27https://trade.kucoin.com/XLM-BTC0.022060164574924 mins atrás
0.00012407HitBTC3393.3/cdn/crypto/logos/exchanges/HITB.pngETH 0,4234091740016909XLM/ETHhttps://hitbtc.com/XLM-to-ETHETH28https://hitbtc.com/XLM-to-ETH0.018962408461910 mins atrás
3.48E-6EXMO2773/cdn/crypto/logos/exchanges/EXMO.pngBTC 0,0097311740017382XLM/BTChttps://exmo.com/en/trade#?pair=XLM_BTCBTC29https://exmo.com/en/trade#?pair=XLM_BTC0.0154960535953Recentemente
0.27063Bitstamp2697.46644197/cdn/crypto/logos/exchanges/BSTP.png£ 729,921740017525XLM/GBPhttps://www.bitstamp.net/markets/xlm/gbpGBP30https://www.bitstamp.net/markets/xlm/gbp0.0150739576474Recentemente
3.49E-6LATOKEN2372.59/cdn/crypto/logos/exchanges/LATK.pngBTC 0,0082991740016923XLM/BTChttps://exchange.latoken.com/exchange/XLM-BTCBTC31https://exchange.latoken.com/exchange/XLM-BTC0.013258486043910 mins atrás
3.5E-6Upbit1467.98802534/cdn/crypto/logos/exchanges/UPBT.pngBTC 0,0051381740015630XLM/BTChttps://upbit.com/exchange?code=CRIX.UPBIT.BTC-XLMBTC32https://upbit.com/exchange?code=CRIX.UPBIT.BTC-XLM0.0082033974460532 mins atrás
0.00012388Kucoin966.6552/cdn/crypto/logos/exchanges/KUCN.pngETH 0,1200501740016929XLM/ETHhttps://trade.kucoin.com/XLM-ETHETH33https://trade.kucoin.com/XLM-ETH0.0054018538721110 mins atrás
0.34243Crypto.com599/cdn/crypto/logos/exchanges/CRTO.pngUS$ 205,111740009907XLM/USDhttps://crypto.com/exchange/trade/XLM_USDUSD34https://crypto.com/exchange/trade/XLM_USD0.003347326398692 horas atrás
3.48E-6Gate.io135.36/cdn/crypto/logos/exchanges/GATE.pngBTC 0,0004711740015848XLM/BTChttps://gate.io/trade/XLM_BTCBTC35https://gate.io/trade/XLM_BTC0.00075641753143128 mins atrás
3.48E-6HitBTC126.7/cdn/crypto/logos/exchanges/HITB.pngBTC 0,0004431740016844XLM/BTChttps://hitbtc.com/XLM-to-BTCBTC36https://hitbtc.com/XLM-to-BTC0.0007080237975211 mins atrás
1.51E-6OKX0/cdn/crypto/logos/exchanges/OKEX.pngBTC 0,000000001740009729XLM/BTChttps://www.okx.com/trade-spot/XLM-BTCBTC37https://www.okx.com/trade-spot/XLM-BTC02 horas atrás
0.00037265Upbit0/cdn/crypto/logos/exchanges/UPBT.pngETH 0,000000001740009735XLM/ETHhttps://upbit.com/exchange?code=CRIX.UPBIT.ETH-XLMETH38https://upbit.com/exchange?code=CRIX.UPBIT.ETH-XLM02 horas atrás
6.758E-5OKX0/cdn/crypto/logos/exchanges/OKEX.pngETH 0,000000001740009728XLM/ETHhttps://www.okx.com/trade-spot/XLM-ETHETH39https://www.okx.com/trade-spot/XLM-ETH02 horas atrás
3.28E-6HTX0/cdn/crypto/logos/exchanges/HUOB.pngBTC 0,000000001740009735XLM/BTChttps://www.huobi.com/en-us/exchange/xlm_btcBTC40https://www.huobi.com/en-us/exchange/xlm_btc02 horas atrás
4.975E-5HTX0/cdn/crypto/logos/exchanges/HUOB.pngETH 0,000000001740009735XLM/ETHhttps://www.huobi.com/en-us/exchange/xlm_ethETH41https://www.huobi.com/en-us/exchange/xlm_eth02 horas atrás
0.342723EXMO0/cdn/crypto/logos/exchanges/EXMO.pngUS$ 0,000000001740017481XLM/USDhttps://exmo.com/en/trade#?pair=XLM_USDUSD42https://exmo.com/en/trade#?pair=XLM_USD0Recentemente
0.3291CEX.IO0/cdn/crypto/logos/exchanges/CXIO.png$ 0,000000001740009725XLM/USDThttps://cex.io/xlm-usdtUSDT43https://cex.io/xlm-usdt02 horas atrás
0.32886CEX.IO0/cdn/crypto/logos/exchanges/CXIO.pngUS$ 0,000000001740009726XLM/USDhttps://cex.io/xlm-usdUSD44https://cex.io/xlm-usd02 horas atrás
0.325CEX.IO0/cdn/crypto/logos/exchanges/CXIO.png€ 0,000000001740010857XLM/EURhttps://cex.io/xlm-eurEUR45https://cex.io/xlm-eur02 horas atrás
Crypto.com/cdn/crypto/logos/exchanges/CRTO.pngBTC -XLM/BTChttps://crypto.com/exchange/trade/XLM_BTCBTC46https://crypto.com/exchange/trade/XLM_BTC0-
2.02E-6CEX.IO0/cdn/crypto/logos/exchanges/CXIO.pngBTC 0,000000001740009725XLM/BTChttps://cex.io/xlm-btcBTC47https://cex.io/xlm-btc02 horas atrás
0.074305Bibox0/cdn/crypto/logos/exchanges/BIBX.png$ 0,000000001740017052XLM/USDThttps://www.bibox.com/en/exchange/basic/XLM_USDTUSDT48https://www.bibox.com/en/exchange/basic/XLM_USDT08 mins atrás
Bitvavo/cdn/crypto/logos/exchanges/BITV.pngBTC -XLM/BTChttps://account.bitvavo.com/markets/XLM-BTCBTC49https://account.bitvavo.com/markets/XLM-BTC0-
3.74E-6Tidex0/cdn/crypto/logos/exchanges/TIDE.pngBTC 0,000000001740009720XLM/BTChttps://tidex.com/exchange/XLM/BTCBTC50https://tidex.com/exchange/XLM/BTC02 horas atrás
Bittrex/cdn/crypto/logos/exchanges/BTRX.pngBTC -XLM/BTChttps://bittrex.com/Market/Index?MarketName=BTC-XLMBTC51https://bittrex.com/Market/Index?MarketName=BTC-XLM0-
0.356354Tidex0/cdn/crypto/logos/exchanges/TIDE.png$ 0,000000001740009720XLM/USDThttps://tidex.com/exchange/XLM/USDTUSDT52https://tidex.com/exchange/XLM/USDT02 horas atrás
Poloniex/cdn/crypto/logos/exchanges/POLO.png$ -STR/USDThttps://poloniex.com/exchange#USDT_STRUSDT53https://poloniex.com/exchange#USDT_STR0-
0.342004HitBTC0/cdn/crypto/logos/exchanges/HITB.pngUS$ 0,000000001740009721XLM/USDhttps://hitbtc.com/XLM-to-USDUSD54https://hitbtc.com/XLM-to-USD02 horas atrás
Bittrex/cdn/crypto/logos/exchanges/BTRX.pngETH -XLM/ETHhttps://bittrex.com/Market/Index?MarketName=ETH-XLMETH55https://bittrex.com/Market/Index?MarketName=ETH-XLM0-
Bittrex/cdn/crypto/logos/exchanges/BTRX.png$ -XLM/USDThttps://bittrex.com/Market/Index?MarketName=USDT-XLMUSDT56https://bittrex.com/Market/Index?MarketName=USDT-XLM0-
3.54E-6Bitfinex0/cdn/crypto/logos/exchanges/BFNX.pngBTC 0,000000001740017178XLM/BTChttps://www.bitfinex.com/t/XLM:BTCBTC57https://www.bitfinex.com/t/XLM:BTC06 mins atrás
Poloniex/cdn/crypto/logos/exchanges/POLO.pngBTC -STR/BTChttps://poloniex.com/exchange#BTC_STRBTC58https://poloniex.com/exchange#BTC_STR0-
Bittrex/cdn/crypto/logos/exchanges/BTRX.png€ -XLM/EURhttps://bittrex.com/Market/Index?MarketName=EUR-XLMEUR59https://bittrex.com/Market/Index?MarketName=EUR-XLM0-
Bittrex/cdn/crypto/logos/exchanges/BTRX.pngUS$ -XLM/USDhttps://bittrex.com/Market/Index?MarketName=USD-XLMUSD60https://bittrex.com/Market/Index?MarketName=USD-XLM0-
0.0001103Gate.io0/cdn/crypto/logos/exchanges/GATE.pngETH 0,000000001740009728XLM/ETHhttps://gate.io/trade/XLM_ETHETH61https://gate.io/trade/XLM_ETH02 horas atrás
DataPreçoVarVar %Mín.Máx.Vol Méd.
1000000CX
4000000CX
12000000CX
26000000CX
52000000CX
156000000CX
260000000CX

Sobre XLM

Lumens are the native asset of Stellar, a network that connects banks, payments systems, and people. Lumen supply is determined by fixed, protocol-level rules. The number of lumens created at genesis was 100 billion. Every year, there is a 1% inflation rate.

Chat de Criptomoedas

Ver Posts
Nenhum post encontrado
DataFechamentoVarVar %AbeMáx.Mín.Volume
17400090000.3416220.0189255.860.322670.341730.32086485937095
17399226000.322697-0.010809-3.240.3339320.3353360.3155389710769
17398362000.333506-0.00924-2.700.3429350.34850.33037781735563
17397498000.342746-0.006421-1.840.3493030.351950.33970156234151
17396634000.349167-0.001581-0.450.3510520.3661190.345587109109654
17395770000.3507480.0134283.980.3368880.362930.333967184399222
17394906000.337320.0046971.410.3323080.3430.32255996721256
17394042000.3326230.0136424.280.3170970.3372220.307031144983661
17393178000.3189810.0070032.240.312350.3394660.312041133265565
17392314000.311978-0.002193-0.700.315990.3230690.303328112380966
17391450000.314171-0.018222-5.480.3313170.3388720.302853117494633
17390586000.3323930.0052561.610.3256460.3345180.32083469658588
17389722000.3271370.0110293.490.3204580.3454430.31663182795796
17388858000.316108-0.01095-3.350.3273290.3412640.313153142948595
17387994000.327058-0.014221-4.170.3397510.3488290.322252133632884
17387130000.341279-0.028048-7.590.371120.375660.332728215727899
17386266000.3693270.0167424.750.3522180.3727770.268626362415326
17385402000.352585-0.042821-10.830.3935640.4012940.33591244995771
17384538000.395406-0.018631-4.500.4133430.420310.38865597357393
17383674000.414037-0.01736-4.020.4293910.4299780.406938128286427
17382810000.4313970.0375099.520.3931970.4439990.389222237927254
17381946000.3938880.0006150.160.3924380.4066250.381771153366251
17381082000.393273-0.013763-3.380.4090010.4210740.390019163031485
17380218000.407036-0.000884-0.220.385710.4101080.364135229679334
17379354000.40792-0.009875-2.360.4169330.4261430.406101860182
17378490000.417795-0.01232-2.860.4308050.4371970.4132679705108
17377626000.430115-0.002676-0.620.4316370.4488510.419791156026920
17376762000.4327910.004611.080.4264860.4373960.412156162749526
17375898000.428181-0.014713-3.320.4428120.445450.425625148173614
17375034000.442894-0.003158-0.710.4447850.4547510.427173879406
17374170000.4460520.0097392.230.426810.4781720.423157281199135
17373306000.436313-0.051792-10.610.4855630.4948390.417145247454045
17372442000.488105-0.001335-0.270.4894640.4896510.45116205875686
17371578000.489440.0066421.380.4840470.4999530.474216222892509
17370714000.482798-0.011166-2.260.4834490.5147830.463439356336850
17369850000.4939640.06502615.160.4277790.4953650.426181382933751
17368986000.4289380.0102822.460.4216460.4366110.415253148521600
17368122000.418656-0.003247-0.770.4227750.4390010.39343202652970
17367258000.421903-0.023748-5.330.4425890.4440.419428118483387
17366394000.4456510.0303637.310.4138730.4588790.403297167282836
17365530000.4152880.0235656.020.3936430.4259680.387232172259660
17364666000.391723-0.035668-8.350.4230910.4299960.386635187484387
17363802000.4273910.0086492.070.419720.4392540.3893310220117
17362938000.418742-0.027274-6.120.4452610.4694090.414019180097839
17362074000.4460160.0042490.960.441590.4633730.432501130337363
17361210000.441767-0.009404-2.080.447240.4566680.431499104843169
17360346000.4511710.0014420.320.4576250.4857250.44432200024788
17359482000.4497290.0150563.460.4307850.460.429435249041688
17358618000.4346730.0132343.140.4277890.4593380.412066213578980
17357754000.4214390.08981627.080.3354040.440.332865330788955
17356890000.3316230.0010060.300.3309320.3459460.32328892103068
17356026000.330617-0.008002-2.360.3356940.3474090.320209115308980
17355162000.338619-0.017179-4.830.3540840.3559020.33464956313095
17354298000.3557980.0070732.030.3497770.3593510.3442849246507
17353434000.348725-0.00628-1.770.3557330.3686580.342866100295307
17352570000.355005-0.028029-7.320.3839620.386520.349516126365247
17351706000.383034-0.017483-4.370.4009050.4032150.37808895851202
17350842000.4005170.0312168.450.3706680.4139160.35974177947519
17349978000.3693010.0126753.550.3559940.3750.345334151161689
17349114000.3566260.0018290.520.3521150.3717030.342643141134804
17348250000.354797-0.018274-4.900.373970.3897950.350772139900473
17347386000.3730710.001170.310.3691330.3838620.312087269368398
17346522000.371901-0.019351-4.950.3938560.4144930.35281233730138
17345658000.391252-0.037607-8.770.4321520.44720.39206701869
17344794000.4288590.0090342.150.4161530.4715420.410209256682846
17343930000.419825-0.013142-3.040.4292360.4455520.40694393078495
17343066000.4329670.0080251.890.4230160.4354460.416135103017949
17342202000.424942-0.011396-2.610.4347330.4517890.411066123167244
17341338000.4363380.011322.660.425880.4530220.411977153655035
17340474000.425018-0.011804-2.700.434940.4509280.418767218461940
17339610000.4368220.0041950.970.4325770.4462880.402811314656636
17338746000.4326270.0199914.840.4050620.44150.362389443804884
17337882000.412636-0.081527-16.500.4918710.4919020.354421233597800
17337018000.494163-0.010447-2.070.5011910.5024180.475487114169006
17336154000.504610.0097771.980.49090.5315040.480321158581331
17335290000.4948330.0224364.750.4688670.5007230.455555199036285
17334426000.472397-0.015801-3.240.4879760.5039260.460001265163827
17333562000.488198-0.023269-4.550.5125990.522440.475867283525989
17332698000.511467-0.026804-4.980.5320060.60.489408558854807
17331834000.538271-0.017456-3.140.5533390.6054160.497501704146032
17330970000.5557270.0258914.890.523550.5616960.492859413833452
17330106000.529836-0.019884-3.620.5492610.5620.52099355332383
17329242000.549720.05439510.980.49160.5515730.48663555443914
17328378000.4953250.0140352.920.4791910.5050.463031332519273
17327514000.481290.04539110.410.4336140.5319710.418005784309068
17326650000.435899-0.048357-9.990.4779820.5141230.414924776578463
17325786000.484256-0.048219-9.060.528550.557120.4711642100915061
17324922000.5324750.0097531.870.5058460.638980.4281441598102237
17324058000.5227220.18258653.680.3476250.5534590.3442221495714429
17323194000.3401360.08163531.580.2715710.3528160.267951736584533
17322330000.2585010.0107134.320.2447730.2609680.23333024757
17321466000.2477880.0163567.070.2333710.2699990.226406746129

Seu Histórico Recente

Delayed Upgrade Clock