Holiday Closing — Some financial markets will be closed Friday, April 18th.  Consequently, the Thrift Savings Plan will not be updating share prices in any of the TSP funds for that day.  Transactions that would have been processed Friday night (April 18th) will be processed Monday night (April 21st), at Monday's closing share prices.

Daily Maintenance — There will be daily routine system maintenance and backups between 12:00 a.m. and 4:00 a.m., Eastern time, which may cause slower than normal transaction response times.

If you are experiencing problems accessing your account outside of these times, read Troubleshooting Login Errors.”