ACH processing time of day
It depends on the bank and network. Banks are to provide outgoing data at the certain time for the processing by the central clearing house (the Federal Reserve system, for ACH), which then distributes incoming data back to the banks. All this has to be done between the closing of the business day and the opening of the next one. If the transaction hasn't completed the full path during that time - it will wait at the position it was stuck at until the next cycle - next night. That's why sometimes ACH transactions take more than 1 day to complete (if, for example, multiple Fed banks have to be involved). Each bank is different, so your question needs to be more specific. For instance, I believe Paypal and Chase settles at 7pm EST on business days. Bank of America at 5PM.
I haven't used it in years, but look at GnuCash. From the site, one bullet point under Feature Highlights: I was recently at the National Physical Laboratory in the UK and discussing exactly this.  By January 2018 financial institutes will be legally required to time stamp all transactions (including high frequency trades) with a UTC time code.  Today this is almost exclusively done using GPS satellite time and as the OP states - these can be spoofed but also are vulnerable to certain weather conditions.  One of the many innovations of NPL in their recent diversification includes sending ‘time’ into the city by  optical fibre which is ‘gold standard and cannot be tampered with’.  Very interesting topic ( I thought )! TARGET2 is a high value realtime settlement system across Europe and for this to be open on weekends would mean all the Banks including Central Banks in the Euro Zone work. Quite a few times to manage intra day liquidity, banks borrow from each other, hence there is an active monitering of the liquidity by Banks. The borrowing happens over phone and fax and the lending bank sending a high value transaction that credits the borrowing banks. These is the day to day job of treasury group [highly paid individuals] to manage liquidity. Now if on weekends the volume is less, it does not make sense to keep these people, the cost of supporting this for very insiginificant business gain is not driving to build such systems.  On the other hand on retail transactions, say Cards [Debit / Credit], ATM, the value is not high and hence there is no treasury function involved and there is a huge need, everything is automated. So no issues. "The second part of your question is the easiest to answer, how much manual work is involved in settlement processes? Payment systems which handle low value (i.e. high volume) transactions work on the basis of net settlement. Each of the individual payments are netted across all of the participant banks, so that only one ""real"" payment is made by each bank. Some days banks will receive money, others they will pay money. This is arbitrary and depends on whether their outbound payments exceed their inbound payments for that day.   The payment system will notify each Bank how much it owes/will receive for the day. The money is then transferred between all of the banks simultaneously by the payment system to remove the risk that some pay and others don't. If you're going to make or receive a very large payment, you're going to want to make certain that its correct. This means that if there's a discrepancy, you need operations people available to find out why its wrong.   When dealing with this many payments, answering that question can be hard. Did we miss a payment? Is there a duplicate? Etc.  The vast majority of payments will process without any human involvement, but to make the process work, you always need human brains there to fix problems that occur. This brings me to your first question. On every day that settlement happens, a bank will receive (or pay) a very large sum of money. As a settlement bank you must settle that money - the guarantee that every bank will pay is one of the main reasons these systems exist. For settlement to happen, every bank has to agree to participate, and be ready to verify the data on their side and deliver the funds from their account. So there is no particular reason that this doesn't happen on weekends and holidays other than history. But for any payment system to change, it would require the support of (at least) a majority of participants to pay staff to manage the settlement process on weekends. This would increase costs for banks, but the benefits would only really be for you and me (if at all). That means it's unlikely to happen unless a government forces the issue." "We have a local bank that changed to a bill pay service.  The money is held as ""processing"" when the check is supposed to be cut and shows as cleared on the date the check is supposed to be received.  Because our business checking is with the same bank, we discovered recently that the although the check shows cleared from our account, the recipient has not received the paper check yet - and may not for 2-3 days.  We discovered this because the payroll checks we write this way (to ourselves) never arrive on the due date but clear the business account.  It appears to be a new way for banks to ride the ""float"" and draw interest on the money.  It happens with every check processed through the bill pay system and not with electronic transfers." I use XE.com for almost the same purpose.  They have free transfer options, such as ACH withdrawals and deposits.  I normally do a online bill payment through my international bank to XE, and have them deposit it in the US via ACH.  It takes 1-3 business days, and there's no fee beyond their small percentage (about 1.25%) on top of the exchange rate. When I place an order with Scottrade I also have to specify if I am wanting to trade outside of normal hours. They need to spread the work for all customers over the whole month, and they don't work on weekends. Combine the two, and the rule becomes clear - if months have minimum of N working days, 1/N of all customers gets set on each day. You seem to be on day 5: If the month starts with a Monday, the fifth working day is the 5. (Friday); if there is a Sat or Sun in between, it will be the 6th, and if there is both a Sat and a Sun in there, it will be the 7th. However, the statement itself is not very important at all. It is just the day where they print it on paper (or even only on a PDF). You can see your bank account activity every day 24/7 by checking online, and nothing keeps you from printing it on every 1st of the month if you want (or every day, or whenever you prefer). There are banks and credit unions that don't charge fee for incoming wire transfer. You most likely won't get that from big brick and mortar banks like BofA, Citi but if you are doing it regularly, using another bank that offers it free would save you a lot. Since ACH are free, you can transfer money between those banks to your regular bank (e.g. BofA) for free. There would be delay involved in this process due to additional ACH. You could also use one these banks as your primary bank to avoid that delay. Credit unions are also generally fee friendly and many would offer free incoming wire transfer. However you are limited to what is available to you as all of them would have some membership criteria. From Chase FAQ it looks like this is a regular ACH transfer. ACH transactions can be reversed under certain conditions. I haven't been able to find some authoritative link on this, so I suggest this (thenest.com budgeting blog) instead: Allowed Reasons You can have ACH transactions reversed for one of three reasons under   the rules: wrong money amount, wrong account or duplicated   transactions. For example, if your mortgage bill is for $756.00, but   your lender's website messes up and you're charged $856.00, the   transaction is reversible it because it's the wrong dollar amount. If   the website charges you $756.00 twice, the second duplicated   transaction is reversible. Reversal Procedures You might have to bring a mistake to the originator's attention to get   it fixed. Only the originator -- the person or company taking or   sending money -- can ask for a reversal. For example, if you have a   transaction for a wrong dollar amount from your lender's website, the   originator is the lender. An originator is supposed to send the   reversal within 24 hours of the error's discovery and within five   banking days of the original transaction. When a reversal is required   because of a wrong amount or wrong account, the originator must send a   correcting entry with the right information. Bank's Responsibility A bank should honor an ACH reversal, even if it means debiting a   customer's account again because of a correcting transaction. However,   the bank doesn't have to debit your account if you closed it or the   new transaction would overdraw it. Your bank does have to tell you if   a correcting entry is going to take money out of your account, but the   bank doesn't need your permission to do it. 8 am EDT happens when this comment is 5 hours and 51 minutes old.  You can find the live countdown here: https://countle.com/424159rwH  ---  I'm a bot, if you want to send feedback, please comment below or send a PM. A day is a long time and the rate is not the same all day. Some sources will report a close price that averages the bid and ask. Some sources will report a volume-weighted average. Some will report the last transaction price. Some will report a time-weighted average. Some will average the highest and lowest prices for the interval. Different marketplaces will also have slightly different prices because different traders are present at each marketplace. Usually, the documentation will explain what method they use and you can choose the source whose method makes the most sense for your application. Shop around for a bank that offers lower/no fees for this operation and move your account there...  or, yes, change where the direct deposit is routed... or move these accounts into a single bank so it's an internal transfer rather than ACH. Or ask the bank whether there is another way to arrange this which doesn't cost you money. (It costs me nothing to move money within my credit union, whether manually or on a scheduled basis. It costs me nothing to have them send funds to another entity from my checking account. Specific example: Pay comes into my savings account. On the 27th, an automatic transfer moves the cost of a mortgage payment from savings to checking. On the 30th, an automatic payment sends that to my mortgage in another bank. No fees on any of this, 100% reliable.) A couple ways, but its not a guarantee.  You have to have special charts. Instead of each tick being 1 min, 5 min, or whatever, it is a set number of trades. Say 2000. Since retail investors only buy and sell in small amounts, there will be small volume per tick. An institutional investor, however, would have a much much higher trade lot size, even if using an algo. Thus, large volume spikes in such a chart would signal institutional activity over retail. Similarly, daily charts showing average trade size can help you pick out when institutional activity is highest, as they have much larger trade sizes. You could also learn how the algos work and look for evidence one is being used. ie every time price hits VWAP a large sell order goes through would indicate an institutional investor is selling, especially if it happens multiple times in a row. If you're talking about just Theta, the amount of decay due to the passage of time (all else being equal), then theoretically, the time value is a continuous function, so it would decay throughout the day (although by the day of expiry the time value is very, very small).  Which makes sense, since even with 15 minutes to go, there's still a 50/50 shot of an ATM option expiring in-the-money, so there should be some time value associated with that one-sided probability. The further away from ATM the option is, the smaller the time value will be, and will be virtually zero for options that are deep in- or out-of-the-money. If you're talking about total time value, then yes it will definitely change during the day, since the underlying components (volatility, underlying price, etc.) change more or less continuously.